It has been said that everyone lives by selling something. In the light of this statement, teachers live by selling knowledge, philosophers by selling wisdom and priests by selling spiritual comfort. Though it may be possible to measure the value of material good in terms of money, it is extremely difficult to estimate the true value of the services which people perform for us. There are times when we would willingly give everything we possess to save our lives, yet we might grudge paying a surgeon a high fee for offering us precisely this service. The conditions of society are such that skills have to be paid for in the same way that goods are paid for at a shop. Everyone has something to sell.
Tramps seem to be the only exception to this general rule. Beggars almost sell themselves as human being to arouse the pity of passers-by. But real tramps are not beggars. They have nothing to sell and require nothing from others. In seeking independence, they do not sacrifice their human dignity. A tramp may ask you for money, but he will never ask you to feel sorry for him. He has deliberately chosen to lead the life he leads and is fully aware of the consequences. He may never be sure where the next meal is coming from, but his is free from the thousands of anxieties which afflict other people. His few material possessions make it possible for him to move from place to place with ease. By having to sleep in the open, he gets far closer to the world of nature than most of us ever do. He may hunt, beg, or steal occasionally to keep himself alive; he may even, in times of real need, do a little work; but he will never sacrifice his freedom. We often speak of my even, in times of real need, do a little work; but he will never sacrifice his freedom. We often speak of tramps with contempt and put them in the same class as beggars, but how many of us can honestly say that we have not felt a little envious of their simple way of life and their freedom from care?
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1, It has been said that everyone lives by selling something.
It has been said that = it is said that据说
2， It has been said that everyone lives by selling something.
live by: to make enough money to feed oneself：依靠某种职业为生
live on 依靠某种食物维持生命，或靠某人生活
3，In the light of this statement, teachers live by selling knowledge, philosophers by selling wisdom and priests by selling spiritual comfort.
in the light of= according to, taking into account 根据，考虑到
in accordance with: 依据(法律) （更加正式）
4, Though it may be possible to measure the value of material goods in terms of money, it is extremely difficult to estimate the true value of the services which people perform for us.
in terms of: 按照，就……而言，关于
in respect of
in / with regard to, as regards
5, There are times when we would willingly give everything we possess to save our lives,
are times when 有时
6, yet we might grudge paying a surgeon a high fee for offering us precisely this service.
I grudge wasting time on this.
7, but he will never sacrifice his freedom We often speak of tramps with contempt and put them in the same class as beggars,
Eg.: How many of us can honestly say that we would like to learn Englsh well?
8, In seeking independence, they do not sacrifice their human dignity.
In seeking independence
in + 动名词搭配，表示“在……的过程中”
In speeking to him, I found he is stammers.
Eg.: in seeking independence
on + 动名词搭配，表示“一……就……”, 必须注意主语的一致性。
Eg.: On seeing the plane coming towards me, I ……
In crossing the hall, I ...
On entering the hall, I...
9, but he is free from the thousands of anxieties which afflict other people.
be free from 不受……的影响
He’s leading a life free from care and anxieties.
The old lady is never free from paining.这位老太太始终病痛缠身。
free from error
free from anxieties.
n. 过路人（复数 passers-by)
This is the instruction manual which/that tells you how to operate the computer.
The chair (which /that) you broke yesterday is now being repaired.
The film (which/that) I saw last night was about a soldier who fought in WWII.
【Multiple choice questions】
1>A circumstance n.环境, 详情, 境况
2>D criminal n.罪犯, 犯罪者 adj.犯罪的, 犯法的, 罪恶的
compensate v.偿还, 补偿
inconvenience n.麻烦, 不方便之处
3>B in moments of truth = truly
compare v.比较, 相比, 比喻 n.比较
burden v.负担 n.担子, 负担
livelihood n.生计, 谋生
5>B a中的have to用的不恰当
7>D contemptuously adv.轻蔑地
speak of 谈及, 说到
speak for 代表...讲话, 为…辩护
speak on 就…而发言
speak to 与…谈话, 向...说
financial adj.财政的, 金融的
insure vt.给...保险 v.确保
sickness n.患病, 疾病, 不适, 恶心
from place to place 从一个地方到另一个地方; 各地, 到处
= here and there 各处, 到处
one way or another 无论如何, 某种方法
in every sense 在各种意义上
-- He is a cheat in every sense.（cheat n.欺骗, 骗子）
11>B to survive = keep himself alive
look down upon/on 蔑视, 瞧不起
-- He was convicted of murder. 他被判犯有谋杀罪。
Blame vt.（常与for连用）责备, 谴责 n.过失, 责备
-- She blamed me for the accident.
Condemn vt.判刑, 处刑（常与to连用）判以死刑或无期徒刑
be condemned to death 被判死刑
-- The prisoner was condemned to death.