It is the preoccupation with possessions， more than anything else， that prevents us from living freely and nobly.
The only thing that will redeem mankind is cooperation.
To conquer fear is the beginning of wisdom.
In all affairs， it's a healthy thing now and then to hang a question mark on the things you have long taken for granted.
Three passions， simple but overwhelmingly strong， have governed my life: the longing for love， the search for knowledge， and unbearable pity for the suffering of mankind.
The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd.
The whole problem with the world is that fools and fanatics are always so certain of themselves， and wiser people so full of doubts.
The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.
Do not fear to be eccentric in opinion， for every opinion now accepted was once eccentric.
To be without some of the things you want is an indispensable part of happiness.
The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt.
To teach how to live without certainty and yet without being paralyzed by hesitation is perhaps the chief thing that philosophy， in our age， can do for those who study it.
The good life is one inspired by love and guided by knowledge.
在我们所知的宇宙中，存在巨大的不公正，善良的人经常受苦，邪恶的人经常繁荣，人们很难知道哪一个更令人恼火。
对财产的过度关注，胜过一切其他因素，阻碍了我们自由高尚地生活。
唯一能够拯救人类的是合作。
征服恐惧是智慧的开始。
在一切事务中，偶尔将一个问号挂在你长期以来视为理所当然的事物上是一种健康的做法。
三种激情，简单但无比强烈，支配着我的生活：对爱的渴望，对知识的追求，以及对人类苦难的无法忍受的怜悯。