知道自己不知道什么比聪明更有用。

What I feared most for myself at your age was not poverty, but failure.

夏天的飞鸟，飞到我窗前唱歌，又飞去了。秋天的黄叶，他们没有什麽可唱的，只是叹息一声，飞落在那里。

心理学的方法必须是客观的，即使研究主观现象时也是如此。

To make love with a stranger is the best. There is nothing more exciting.

The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.

我越是研究染色体，就越意识到它们非凡的行为。

追求数学知识是一场永无止境的冒险，充满了挑战、惊喜和解决不可解问题的满足感。