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.

无人机的应用将无处不在。

I have learned to seek my happiness by limiting my desires， rather than in attempting to satisfy them.

The only person you should try to be better than is the person you were yesterday.

人们相信上帝，因为世界非常复杂，他们认为像飞鼠、人眼或大脑这样复杂的东西不太可能是偶然发生的。

环境是一个长期问题，需要长期承诺。