我曾听说过这样一个说法：快乐就是拥有健康和短暂的记忆。我多么希望这是我发明的，因为说得太对了。

每一个数学问题都是通向新理解世界的窗口。

Diversity of thought leads to better solutions—if you're not uncomfortable, you're not growing.

The purpose of psychology is to explain how we manage to live.

Chemistry is the science of matter, but I prefer to see it as the science of change.