我不是一个完美的人，我从来没有声称过。但我每天都在努力变得比昨天更好。
I'm not a perfect person, I never claimed to be. But I'm trying every day to be better than I was yesterday.
The difference between perseverance and obstinacy is that one comes from a strong will, and the other from a strong won’t.
生命、自由和共同礼仪的最坏敌人是完全的无政府状态；它们的第二坏敌人是完全的权力。
Progress in agriculture must be measured not just in yield, but in long-term environmental impact.
跳舞吧，就像没人在看一样。
The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.
