Sustainability isn't an option—it's a necessity for the future of agriculture.

自然是用数学语言写的。

"You have to put in the hours because there’s always something which you can improve."

A good book should leave you slightly exhausted at the end. You live several lives while reading it.

不和屯积钱财的人争较财富多少；不和热心仕途的人争较地位高下；不和骄傲自夸的人争较名声大小；不和年轻力壮的人争较仪容风度，不和逞强好胜的人争较胜负高低。

这就是如此奇怪的事情，人们不会相信真正真实的东西，就在他们眼前的东西。