The Magic of Names

i wanted to start this afternoon

with a question for all of you that

you’ll see up on this slide

what do these three words all of which

begin with the letter e

have in common earthsea elendil

and aragon some of you might know the

answer

some of you may think you know maybe you

vaguely remember having read

something that had to do with these

three names

but a lot of what i want to say today is

linked to these three names

because each of these refers to

[Music]

a set of books earthy is a world that

was created

by the writer ursula leguin

it started off as a trilogy but it grew

quite rapidly

into a whole series of books and short

stories

centered around this land that had

dragons in it and wizards

and other forms of magic elendil

some of you will remember is the father

of aragon

the father of the king who returns in

the lord of the rings trilogy

and there again we have a world that is

characterized by dragons

and wizards and other forms of magic as

well as simple folk

like hobbits and then finally in

the e that you see third on this list is

the e of aragon

right aragon who is a young dragon rider

born after many years of there being no

dragon riders in a world called

allegacia now you might be wondering

why do i talk about these things today

part of it is that times of crisis give

a lot of us time to read

when we are at home working we can’t be

doing that all the time

and we therefore have more time i think

to indulge in

reading and exploration of worlds and i

was rediscovering many of these

worlds for the second time as i

went through the recent crisis but much

more importantly

what i love about these three sets of

books right then the fact that all of

them

are involved with new worlds being

created

is that in each of them there is a

particularly

interesting quality in

earth sea there is a language called the

old town

the old language in which the world got

created

and from which everything received their

names

in middle earth for tolkien

we also have the language called elvish

which the ancient

people speak and in the world of

allagasia

we have a world which speaks something

called the ancient language

now what’s really interesting about each

of these is that

you cannot lie in any of these languages

all of them are known as the true speech

and it is impossible

because anything said in the true speech

is by definition true

so it is impossible to lie or perform an

act of deceit

in these languages and what’s really

interesting

is that the names that people possess

the true names

not just the names and labels that they

happen to be given

by others but the true names of each

person

the true names of fire of rocks

of the sea of wind of the earth itself

each of these is given in the old

language

it’s given in elvish it’s given in the

old tongue of earth sea

it’s given in the ancient language of

allegations and the world of aragon

now why is this interesting because in

ursula le guin’s books

as i think applies in the rest of them

when we control

the name of something we control

the thing itself and therefore spell

casters who want to cast a spell of fire

will say the ancient name

fire and then be able to cast a spell

with it

or if they want to conjure up a wind

they will say the name

wind in the ancient language and conjure

that up

now this is all from worlds that are far

away and worlds that are distant from us

but even in the world we live in in many

cultures including the abrahamic

religions

names matter one of the first things

that adam

does as the first man in the biblical

tradition

is he gives names to the cattle to the

birds of the air to every beast of the

field to all things in other words

and it is the act of naming that gives

each of those things their unique

identity why is this important for us

because as we think about what the arts

and humanities can do

i think a lot of it boils down to the

act of naming

we are naming the complexity we are

naming the variety and subtlety and

dynamism

of all of life and as we’ve come up with

good names

those are the names that stick and help

us to understand the world around us a

whole lot better

now let’s take an example of this that

is very close to

all of our hearts how did we name

this virus that is currently the source

of so much

crisis and anxiety and stress and nerves

for everyone

we started out by calling it the wuhan

coronavirus why

because it came from the chinese city of

wuhan

gradually as it became a much more

global phenomenon and many other

countries started to have

more cases than wuhan city or china as a

whole

people started to realize that they

couldn’t name it in that way

they needed to find other names and so

we started to call it the novel

coronavirus 2019

or nkovi 2019 right as a short form

now this is also interesting because

what it suggests is that it’s novel it’s

new but it’s a coronavirus we’ve known

other coronaviruses before sars right

the severe acute respiratory syndrome

was caused by a coronavirus and this

this current virus that we face

therefore is

novel because it gives us new qualities

and it is not one that we recognized

before

but then people also realized that after

a while it was

not so novel when the virus didn’t go

away and it persisted

and it stayed with us we started to

realize it wasn’t so novel after all

and we needed to find a new name for it

and then the world health organization

settled on covet 19

as a formal name right to capture that

it is a coronavirus

it happened in 2019 and therefore that

is the current name that we have

but i do wonder will this name last

because what happens

if as it looks increasingly likely

covet 19 is around for a very long time

what if it is also kovit 20 and kovitt

21

and covet 22. the names

matter and i think the fact that we

haven’t fully settled on a name that

captures the full complexity

of the whole situation we’re in captured

by the virus

suggests that we haven’t really fully

understood it and we therefore have not

fully come to grips with the complexity

of the phenomenon

that we have to deal with here

and this is particularly important

because as we saw with the examples of

the old language

to name is to find truth and if we name

something

we give it a quality of truth that helps

us to recognize what it is and what it

isn’t

and some of the names that we’ve used to

deal with kovid

i think also show us that there have

been interesting dimensions

in each of the names that illuminate as

well as obfuscate certain aspects of the

crisis we’re in

many people talk about covet as a war

right we talk about

defeating the virus we talk about

quarantines and

clamping down on on the case numbers we

talk about flattening the curve

all of those are objects and metaphors

of war

but that name that war name for covid is

not enough

because what we find is actually when

you think about it who’s being defeated

here

who is the enemy in this war

some people refer to kovit as a journey

they say we have to take

this journey together and on that

journey we will learn

and we will acquire insights about what

exactly this virus is

but even that is an inadequate name

right because a journey suggests that we

know where we’re going

that there is a destination somewhere

but maybe there isn’t maybe there is

just this constant traveling

a constant process rather than any kind

of arriving

and that becomes interesting because we

also then can ask ourselves

who does the traveling and how do we do

it are all of us traveling in the same

way on this journey

or do some of us travel in great comfort

as we have to work from home

and knuckle down to safe distancing

measures

but others actually might experience

this as trauma or distress

that journey is not the same for

everyone which suggests to me that the

next image there the name of an ecology

if you call kovit an ecology then maybe

that helps us understand it a bit better

because we see that it’s part of a

natural process of evolution

in the world we start to understand that

actually

there are these natural life rhythms at

work in it

and maybe this is just the worlds and

the earth’s reaction to

capitalism and climate change and many

of the other

stresses and pressures that we as

humanity have put on it

but even that i think is not enough as a

name because

what we see is that the ecology

captures linkages amongst people but in

a very cold and impersonal way

in other ecologies the lion eats the

gazelle the gazelle eats

grass and there is an order of things

right a natural order

but i’m not sure that that’s always the

case with kovid because there are some

people who are suffering

in the crisis which suggests to us that

they don’t they may not

deserve it they may be suffering because

of no fault of their own

they may be deprived for certain reasons

they may not have access to

as much of the internet as others do and

therefore working from home

or staying distance from others becomes

much more difficult for them

and i think we need to start

understanding that covid is also a

community phenomenon

it’s a community because all of us have

moral relationships with those around us

and that name of community therefore

captures something very different

compared to the war the journey and the

ecology names

that have already been given to this

crisis

i think that’s important because if we

accept that naming is a key part

of what the humanities do then actually

we haven’t done a good job

yet of fully naming the complexity and

range and depth

of this whole phenomenon that all of us

find ourselves in

what i wanted to do was also give you

other examples of why naming

matters what are some of your favorite

examples of a name where when you look

at it

you feel this thrill go down your spine

and think yes that is

absolutely accurate that represents the

thing so well that it must be the true

name of this object

sometimes we get that sometimes we don’t

these for me have been examples where

i’ve looked at them and thought yes

this really captures a particular aspect

of something better than say

covetous war or ecology or community

even

has captured for the virus when barack

obama talks about the audacity of hope

in his second part of his autobiography

i think that captured the name of a time

it was about being audacious about

having large

dreams but it was also audacity of hope

it wasn’t anger it wasn’t frustration

it was hope the fact that there is

something to be optimistic about in the

future

even if we don’t necessarily feel that

way now that captured the name

and the tenor of a time when lee kuan

yew

you know decided to title one of his

books hard truths

that i think captured something as well

right hard

difficult aspects of things that we go

through and truths right fundamental

realities that we cannot run away from

and when you put them together these

hard truths capture both something about

the phenomenon he’s describing

as well as the times that he was in

and the broad challenges that a place

like singapore can face

some time ago i read a wonderful book

about identities

that all of us have by the philosopher

amateur sen

and amateusen described what he called

plural monoculturalism

the fact that in some countries and

societies we may have many different

ethnicities and religions all coexisting

but they never interact with each other

so they’re plural

because they’re all there in their

diversity but they are monocultural in

that they never actually interact with

each other

there isn’t any kind of energy between

them

that i thought captured a phenomenon

that we want to be careful about because

diverse societies like singapore and

many other parts of the world

probably don’t want to be plural

monocultures they want to have

interactions amongst the cultures and be

truly multicultural

thomas hardy in the mayor of

casterbridge describes human beings at

one point as

we fettered gods of the earth

that for me is another set of names that

is just beautiful

sends shivers down my spine whenever i

read that novel again

the fettered gods of the earth are

fettered in that we are chained we’re

imprisoned

we don’t have complete freedom but we’re

gods of the earth

we have dominion and control over other

things

we have an element of the divine in us

if you believe

several religious traditions that

believe that we are created in god’s

image

and that idea that we are therefore both

fettered and gods

at the same time is for me a truly

accurate description

of what humankind is like and therefore

the kinds of both struggles

and opportunities that we have to deal

with

the last two examples actually no let me

start with shakespeare first of all one

can’t have a

talk on humanities and and the arts

without at least mentioning shakespeare

briefly i think

and when shakespeare in hamlet right

characterized

the condition of humanity in this

dilemma of to be or not to be

i think he was naming the complexity of

life as well that we are often stuck in

this existential struggle

between an active life to be

fully ourselves or not to be right to be

alienated and fragmented from what we

are

both of those are key parts of the

dichotomy that exists for all of

humanity

and finally i wanted to share two

examples with you that are a bit more

personal

and these are the titles of my poetry

collections because i wrote many of the

poems

and then struggled for the longest time

with what to call each of the

collections

the first title morning at memory’s

border came to me

when i was actually in texas i was at a

writer’s festival and i heard so much

poetry around me that i think

i finally was able to give a name to my

own book

and i called it morning at memories

border because i think of memory as a

place

it has borders to it and when morning

comes

a lot of those delineations and those

boundaries get lit

they are illuminated in ways that were

not there in the dark of night

but each of the words matters as well

because i was writing a lot about

mornings

about memory and about borders both

physical and

literal as well as figurative ones so

put together the name worked both at the

individual words level

as well as all of them working as a

composite

similarly with the other title second

persons i called the

the book that because each poem was

written as a second person poem

addressed to a you of some kind some of

these were love letters to people

some were love letters to god some were

letters to myself but all of them were

written in the second person to a u

of some form but what was also

interesting was that book was my second

book and it meant therefore that it was

a second version of me and the name

therefore started to work on multiple

levels

and i think these are quite critical

ways of thinking

about how we name things because when we

get the name

right something falls into order about

the world that we’re in

and the more we try to do that get names

correct

the more we’ll be able to adjust to the

kind of demands that the world has of us

i think my challenge that i would leave

you with to end off the talk

is to really ask yourself what is your

true name

what would your name be in the old

tongue of earthsea

or elvish or the ancient language of

allagasia

because when we seek our true names we

start on this lifelong adventure

that in some ways never ends because

maybe our true names also change and

evolve along the way

some of this is determined by the work

we do the vocations and the missions

that we have

but most importantly my favorite word

for what i do

is calling a calling because

i’m called to do public sector work or

called to be a poet and what is it that

we call people

we call them by their names so as you go

about

listening to the calling of your own

name what i hope you will find is that

you hear it increasingly clearly

over time and that when you do find your

true name

you find that your place in the world is

truly well defined

and that you can start giving to others

as much as you receive from them

thank you very much for having me

you

我想从今天下午

开始向你们所有人提出一个问题,

你们会在这张幻灯片上

看到这三个

以字母 e 开头的词

有什么共同点 earthsea elendil

和 aragon 你们中的一些人可能知道

答案

你们中的一些人可能认为你知道也许你

隐约记得

读过一些与这

三个名字有关

的东西,但我今天想说的很多东西都

与这三个名字有关,

因为每一个都指的是

[音乐]

一套书 Earthy 是一个

由作家 ursula leguin 创造的世界,

它最初是三部曲,但它

很快发展

成为一系列

以这片土地为中心的书籍和短篇小说,里面有

龙,还有巫师

和其他形式的魔法 elendil

一些 你们中的一个人会记得

阿拉贡

的父亲在指环王三部曲中回归的国王的父亲

,我们再次拥有一个

以龙

和巫师以及其他形式的魔法以及魔法为特征的世界

像霍比特人这样简单的人,然后最后

在 e 中,你在这个列表中看到第三个是

aragon 的 e

右 aragon,他是一个年轻的龙骑士

在一个叫做 allegacia 的世界中多年没有龙骑士之后出生,

现在你可能想知道

为什么我今天要谈论这些事情,

部分原因是危机时期给

了我们很多时间阅读,

当我们在家工作时,我们不能一直

这样做,

因此我们有更多的时间

来沉迷 在

阅读和探索世界的过程中,

当我经历最近的危机时,我第二次重新发现了其中的许多世界,

更重要的

是,我喜欢这三套

书的原因在于

它们

都涉及到新的 被

创造的世界

是每个人都有一种

特别

有趣的品质 在

地海中有一种语言叫做

老城 古老的语言创造了世界

,一切都来自于它 r

在中土世界为托尔金命名

我们也有一种叫做精灵语的语言

,古代

人说这种语言,在阿拉加西亚的世界里,

我们有一个说古代语言的世界,

现在每个人真正有趣

的是

你不能说谎 这些语言中的

任何一种都被称为真正的语言

,这是不可能的,

因为在真正的语言中所说的任何东西

根据定义都是真实的,

因此不可能用这些语言撒谎或

进行欺骗行为

,真正

有趣

的是 人所拥有

的真名

不只是别人碰巧给他们的名字和标签,

而是

每个人的真名 古老的

语言

它是用精灵语给出的 它是

用地球

海的古老语言给出的 它是用古老的语言给出的

指控和阿拉贡的世界

现在为什么这很有趣 因为在

ursula le guin 的书中

,我认为适用于其余部分,

当我们控制

某物的名称时,我们控制

了该事物本身,因此

想要施放火咒的施法者

会说出古老的名称

火,然后能够

用它施咒,

或者如果他们想变出风,

他们会

用古代语言说风这个名字,然后

变出现在

这一切都来自

遥远的世界和远离我们的世界,

但即使在世界上 我们生活在

包括亚伯拉罕宗教在内的许多文化中

名字很重要

亚当作为圣经传统中的第一个人所做的第一件事之一

就是他给牛起名字到

天空中的鸟给

田野里的每一个野兽给所有的东西 换句话说

,正是命名的行为

赋予了这些事物独特的

身份,为什么这对我们很重要,

因为当我们思考艺术

和人文学科可以做什么时,

我认为其中很多归结

为 命名的ct

我们在命名复杂性 我们在

命名所有生命的多样性、微妙性

和活力,当我们想出

好名字时,

这些名字会牢牢记住并帮助

我们更好地了解周围的世界

现在让我们举一个

非常贴近

我们所有人内心的例子 我们如何将

这种病毒命名为

目前给每个人带来如此多

危机、焦虑、压力和神经

的病毒 我们一开始称它为武汉

冠状病毒 为什么

因为 它逐渐来自中国武汉市,

因为它成为一种更加

全球化的现象,许多其他

国家的

病例开始超过武汉市或整个中国,

人们开始意识到他们

无法以他们需要的方式命名

寻找其他名称,因此

我们开始将其简称为新型

冠状病毒 2019

或 nkovi 2019,

现在这也很有趣,

因为它表明它是新颖的,它是

新的,但它是冠状病毒 我们在 SARS 之前就已经知道

其他冠状病毒

严重急性呼吸系统综合症

是由冠状病毒引起的,因此

我们面临的这种当前病毒是

新颖的,因为它赋予了我们新的品质

,它不是我们以前认识的

而是人们也认识的 意识到

一段时间后,

当病毒没有

消失并且持续存在

并一直留在我们身边时,

它并不那么新颖,我们开始意识到它毕竟不是那么新颖

,我们需要为它找到一个新名称

,然后

世界卫生组织决定将 covet 19

作为正式名称,以捕捉

它是

2019 年发生的冠状病毒,因此这

是我们目前的名称,

但我确实想知道这个名称是否会持续

下去,因为如果它看起来越来越多,会发生什么

covet 19 可能已经存在很长时间

了,如果它也是 kovit 20 和 kovitt

21

和 covet 22 怎么办。名字很

重要,我认为我们

还没有完全确定一个能够捕捉完整的名字的事实

我们被病毒捕获的整个情况的复杂性

表明我们还没有真正完全

理解它,因此我们还没有

完全掌握

我们必须在这里处理的现象的复杂性

,这一点尤其重要

因为正如我们在旧语言的例子中看到的那样

,命名是为了找到真理,如果我们命名

某物,

我们就会赋予它一种真理的品质,帮助

我们识别它是什么,它不是什么,以及我们认识的

一些名称 曾经

与 kovid 打交道,

我认为这也向我们展示了每个名字中

都有有趣的维度

,这些维度既可以阐明

也可以混淆

危机的某些

方面

战胜病毒,我们谈论

隔离并

控制病例数,我们

谈论拉平曲线,

所有这些都是战争的对象和隐喻

但战争名称对于 covid 的名称是

不够的,

因为 wha 我们发现实际上当

你想一想谁在这里被打败

谁是这场战争中的敌人

有些人把科维特称为一段旅程

他们说我们必须一起走

这段旅程,在这段

旅程中我们将学习

并获得洞察力 关于

这种病毒到底是什么,

但即使这样的名字也不

恰当,因为旅程表明我们

知道我们要去哪里

,在某个地方有一个目的地,

但也许没有,也许

只是这种持续不断的旅行,

一个持续的过程,而不是 任何形式

到达都会变得有趣,因为我们

也可以问自己

谁在旅行以及我们如何旅行

是我们所有人在这次旅行中都以同样的

方式旅行,

或者我们中的一些人在旅行中非常舒适,

因为我们必须这样做 在家工作

并严格遵守安全距离

措施,

但其他人实际上可能会

将此视为创伤或痛苦

,因为每个人的旅程都不一样,

这向我暗示

下一张图片

如果你称科维特为生态学,

那么生态学的名称可能有助于我们更好地理解它,

因为我们看到它是世界上

自然进化过程的一部分,

我们开始理解

实际上

存在这些自然的生命节律

在其中工作

,也许这只是世界

和地球对

资本主义和气候变化的反应,以及

我们作为人类施加在它身上的许多其他压力和压力,

但即使是我认为作为一个名字还不够,

因为

我们所看到的 是生态

捕获了人与人之间的联系,但在其他生态中以

一种非常冷漠和非个人的方式

狮子吃

瞪羚瞪羚

吃草并且有

一个自然秩序的正确顺序,

但我不确定情况是否总是

如此 与科维德在一起,因为有些

在危机中受苦,这向我们表明,

他们没有,他们可能不

值得,他们可能因为

自己的过错而受苦,

他们可能 由于某些原因被剥夺了

他们可能无法

像其他人那样访问尽可能多的互联网,

因此在家工作

或与他人保持距离

对他们来说变得更加困难

,我认为我们需要开始

了解covid也是一种

社区现象

这是一个社区,因为我们所有人都与我们周围的人有

道德关系,

因此社区的名称

与战争、旅程和已经赋予这场危机的生态名称相比,捕捉到了一些非常不同的东西

我认为这很重要,因为如果我们

接受 命名

是人文学科工作的关键部分然后实际上

我们还没有

做好充分命名整个现象的复杂性、

范围和深度

的工作,我们所有人都

发现自己处于

我想做的事情中 你

还有其他关于为什么命名很

重要的例子 你最喜欢

的名字的例子是什么 当你

看着它时,

你会感到这种快感 脊椎

并认为是的,这是

绝对准确的,它很好地代表了这个

东西,它一定

是这个物体的真实名称

有时我们得到,有时我们不知道

这些对我来说是

我看过它们并认为是的

例子

巴拉克奥巴马

在他的自传的第二部分谈到大胆的希望时,

我认为这抓住了一个时代的名字

大胆地拥有远大的

梦想,但这也是大胆的希望

,不是愤怒,不是沮丧,

而是希望未来有

一些事情可以乐观,

即使我们现在不一定有这种

感觉 这抓住

了李光耀决定将他的一本书命名为“硬道理”的时代的名字和主旨

,我认为这也抓住了

一些东西 在我们

经历和真相正确的基本

现实时,我们无法逃避

,当你把它们放在一起时,这些

艰难的真相既捕捉到了

他所描述的现象

,也捕捉到了他所处的时代,

以及像新加坡这样的地方所面临的广泛挑战

可以面对

前段时间我读了一本很棒的书,

关于

我们所有人的身份,哲学家

业余 sen

和 amateusen 描述了他所谓的

多元单一文化主义

,在一些国家和

社会中,我们可能有许多不同的

种族和宗教共存,

但他们 从不相互交流,

所以他们是复数的,

因为他们都存在于他们的

多样性中,但他们是单一文化的

,因为他们从不真正相互交流,他们

之间没有任何能量

,我认为这捕捉到了一种现象

,我们 想要小心,因为

像新加坡和世界许多其他地方这样的多元化社会

可能不想成为 多元

单一文化 他们希望

在文化之间进行互动并成为

真正的多元文化

卡斯特布里奇市长

托马斯·哈迪曾在某个时刻描述了人类,

因为

我们束缚了地球之神

,对我来说这是另一组美丽的名字让

我不寒而栗 每当我

再次读那本小说时

,脊椎被束缚的地球之神被

束缚,因为我们被束缚我们被

囚禁

我们没有完全的自由但我们

是地球之神

我们拥有统治和控制其他

事物

我们拥有

如果您相信

几个宗教传统,

相信我们是按照上帝的形象创造的,

并且我们因此同时是束缚和上帝的想法,那么我们

内在的神圣元素对我来说是对

人类是什么样子的真正准确描述,因此

我们必须

处理最后两个例子的斗争和机会的种类实际上不让我

首先从莎士比亚开始一个

不能

谈一谈人文和

艺术,至少不简单地提到莎士比亚,

想当莎士比亚在哈姆雷特中

描述人类在

存在或不存在的困境中的状况时,

我认为他也在命名

生活的复杂性 我们经常陷入

这种存在主义的斗争中

,在积极的生活中

充分发挥自己或不正确地

与我们疏远和分裂我们

两者

都是为全人类而存在的二分法的关键部分,

最后我想

和你分享两个更

个人化的例子

,这些是我的诗集的标题,

因为我写了很多

,然后

为每首

诗集

的名字挣扎了最长时间。记忆边界的第一个标题早上

来了 对我来说,

当我实际上在德克萨斯州时,我正在参加一个

作家节,我在周围听到了很多

诗歌,我想

我终于能够给

自己的书起个名字

我把它称为记忆

边界的早晨,因为我认为记忆是一个

它有边界的地方,当早晨

到来时

,许多那些划定和那些

边界被照亮,

它们以在黑夜中不存在的方式被照亮,

但是 每个单词也很重要,

因为我写了很多

关于记忆的早晨以及关于

物理和

文字以及比喻的边界的东西,所以

把这个名字放在一起,既可以在

单个单词级别

上工作,也可以作为一个

类似地与另一个标题第二

人称组合我称

这本书是因为每首诗都是

写给某种你的第二人称诗

其中

一些是给人们的

情书一些是给上帝的情书一些是

给我自己的信 但它们都是

以某种形式以第二人称写给 au

的,但

有趣的是那本书是我的第二

本书,因此这意味着它

是第二版 我的名字和名字

因此开始在多个层面上起作用

,我认为这些是

思考我们如何命名事物的非常关键的方式,因为当我们

得到正确的名字时

,我们所处的世界就会变得秩序井然,

而且更多 我们努力做到这一点,让名字

更正确,我们将能够适应

世界

对我们的那种要求 你的

真名

你的名字是什么,在地

或精灵语或古阿拉加西亚语中,

当我们寻找真名时,我们

开始了一生的冒险

,在某些方面永远不会结束,因为

也许我们的真名也会改变和

发展 在此过程中,

其中一些是由我们所做的工作

和我们所拥有的使命决定的

但最重要的是,我最喜欢的词

是我所做的事情

是调用一个电话,因为

我被要求做公共部门的工作或

加州 我很想成为一名诗人,我们叫人什么,

我们用他们的名字来称呼他们,所以当你

去听你自己的名字的呼唤时,

我希望你会发现,随着时间的推移,

你会越来越清楚地听到它

,当 你确实找到了你的

真名

你发现你在这个世界上的位置

真的很明确

并且你可以开始给

别人多少你从他们那里得到的东西

非常感谢你让我成为