As in geometry the most natural way of beginning is from a mathematical point, so is the same method in observations and natural history the most genuine, simple, and instructive.

预测农业未来的最好方法就是创造未来。

I'm not afraid to fall, because I know I'll get back up.

书籍经过多次传抄，“鱼” 字可能写成 “鲁” 字，“虚” 字可能写成 “虎” 字。