1、Wise men learn by other men’s mistakes; fools by their own. 聪明人从别人的错误中学得教训；笨人则自己付出代价。他山之石可以攻玉。

2、Wisdom in the mind is better than money in the hand.脑中有知识，胜过手中有金钱。

3、While there is life, there is hope.有生命便有希望/留得青山在，哪怕没柴烧

4、Two heads are better than one. 一人不及二人智；三个臭皮匠，胜个过一个诸葛亮。

5、Truth never fears investigation.事实从来不怕调查。

6、To an optimist every change is a change for the better.对于乐观者总是越变越好。

7、The voice of one man is the voice of no one. 一个人的声音没有力量。

8、The secret of success is constancy of purpose.成功的秘诀在于持之于恒。

9、Storms make trees take deeper roots.风暴使树木深深扎根。

10、Saying and doing are two different things. 说和做是迥然不同的两回事。

11、On earth there is nothing at but man; in the man there is nothing at but mind. 地球上唯一伟大的是人，人身上唯一伟大的是心灵。

12、Nothing great was ever achieved without enthusiasm.无热情成就不了伟业。

13、Money spent on the brain is never spent in vain. 智力投资绝不会白花。

14、Misfortunes tell us what fortune is.不经灾难不知福。

15、Misfortunes never come alone/single.祸不单行。