社会系统是个人之间以及群体之间关系的系统。

Ideas are like fish. If you want to catch little fish, you can stay in the shallow water. But if you want to catch the big fish, you've got to go deeper.

设定一个野心得荒谬的目标的好处是，上限足够高，这样即使最后失败了，以通常的标准来衡量也可以算某种程度上的成功。

成功不在于终点，而在于旅程。

The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

身体是意义的主要场所。