人性的弱点总是充满贪婪、恐惧或者是愚蠢，这是完全可以预测的，但是我们无法预测这种人性弱点的发生顺序。
遗传学是活人的考古学。
The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.
The human being is always more than what he knows of himself.
恐惧是迷信的主要根源，也是残酷的主要根源之一。战胜恐惧是智慧的开端。
变化是不可避免的，但成长是可选的。