Gratitude is the sign of noble souls.
感激是高尚灵魂的标志。

Buddha 佛陀
Though a man go out to battle a thousand times against a thousand men, if he conquers himself he is the greatest conquerer.
虽然一个人和一千个人对战一千次，如果他能征服自己，他才是一个伟大的征服者。

Foolish friends are worse than wise enemies.
愚蠢的朋友比明智的朋友更糟糕。

Socrates
苏格拉底
There is only one good, that is knowledge; there is onlu one evil, that is ignorance.
善只有一个，那就是知识；恶只有一个，那就是愚昧。

better do a little well, than a great deal badly.
做少许事情而做的很好，胜于做很多事情而做的很糟。

Plato
柏拉图
Perfect wisdom has four parts:
完美的智慧有四部分：
wisdom，the principle of doing things aright;
智慧——把事情做的正确的资质；
justice, the principle of doing things equally in public and private;
公正——公开和私下做事都能一样的资质；
fortitude, the principle of not flying danger, but meeting it;
刚毅——应对而不逃避的资质；
and
temperance, the principle of subduing desires and living moderately.
节制——抑制欲望并过着适度生活的资质。

All knowledge that is divorced from justice must be called cunning rather than wisdom.
一切与公理正义相背离的知识，只能称之为诡诈，而不是智慧。

Necessity is the mother of invention.
需要是发明之母。

Aristotle
亚里士多德
Anybody can become angry—that is easy；but to be angry with the right person, and to the right danger, and at the right time, and for the right purpose, and in the right way—that is not within everybody's power and is not easy.
任何人都会发怒—那是容易的。但是，对适当的人、以适当的程度、在适当的时候、为适当的目的、并且以适当的方式——那不是人人都能做到的，而且不是易事。

The high-minded man does not bear grudges, for it is not the mark of a great soul to remember injuries, but to forget them.
品德高尚的人不怀恨，因为一个伟大的灵魂的标志并不是牢记自己所受的屈辱，而是忘记它们。

Plutarch
普鲁塔克
It is indeed a desirable thing to be well descended, but the glory belongs to our ancestors.
有良好的家世诚然是一件美事，但是光荣属于我们的祖先。

Da Vinci (Leonardo)
达芬奇
He who does not punish evil commands it to be done.
对罪恶不佳惩罚的人，无异于在鼓励人作恶。

Michelangelo
米开朗琪罗
Genius is eternal patience.
天才是永恒的耐心。

Voltaire
伏尔泰
A philosopher's duty is not to pity the unhappy—it is to be of use them.
一个哲学家的职责并不是怜悯不幸的人们，而是要对于他们有所助益。