The true art of memory is the art of attention.

A leader does not deserve the name unless he is willing occasionally to stand alone.

每一天都是变得更好的机会。

I have a very simple idea on how to get rich. The first is to spend less than you make, and the second is to invest the difference wisely.

电子是化学中最重要的实体。

我们无法改变任何事物，除非先接受它。谴责不会解放，反而会压迫。