人生幸福的三大要素是：有事可做，有人可爱，有希望可期待。

Great leaders don't create followers; they create more leaders.

A first sign of the beginning of understanding is the wish to die.

The strength and power of despotism consists wholly in the fear of resistance.

Science is not just a collection of facts; it is a way of thinking.

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。