Leadership is about making tough decisions today that will benefit future generations.

The path to economic justice begins with recognizing the full humanity of every individual.

我们所有的知识只是帮助我们比一无所知的动物死得更痛苦。

For every dollar you spend purchasing something substantial， expect to pay a dollar in repairs， maintenance， or disposal by the end of its life.

大多数人都过于焦虑，担心太多。成功意味着要非常有耐心，但该出手时就出手。