The study of mind should be the study of its adaptive functions.

The best way to succeed is to fail often.

I can’t play bridge. I don’t play tennis. All those things that people learn, and I admire, there hasn’t seemed time for. But what there is time for is looking out the window.

预测未来的最好方法就是创造未来。

当他未得到官职的时候，唯恐得不到；已经得到了官职，又唯恐丢失掉。假若害怕丢失掉，便什么坏事都能干出来。