最大的谜团不在星辰，而在我们自己。

The motor of our ingenuity is the question ‘Does it have to be like this?’, from which arise political reforms, scientific developments, improved relationships, better books.

始终追求卓越，而不是完美。

不要一直犯同样的错误；尝试犯些新的错误。

气候变化是对我们农业智慧的最大考验。