生存等于愤怒乘以想象力。

人生在世，常常遇到不如意的小事，这是好兆头，可以避免重大的祸事发生。假如每件事都称心如意，那么必然会在以后遇到重大的挫折。明白这个道理，就会心平气和，不再怨天尤人。

数学研究是所有自然现象精确知识不可或缺的基础。

The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.

The best investments are those that power both economies and ecosystems.