No man really knows about other human beings. The best he can do is to suppose that they are like himself.

The time at our disposal each day is elastic; the passions we feel dilate it, those we inspire contract it; and habit fills up what remains.

The future belongs to those who understand that doing more with less is not just an option—it’s a necessity.

改变你的思想，你就改变了你的世界。

我们德国人永远不会摆脱希特勒。他就像我们脸上的胎记。

永远不要停止学习；一旦停止，你就会开始落后。