Memory was in this respect similar to anticipation: an instrument of simplification and selection.

信仰 + 怀疑 = 理智。

True progress in farming comes from observing and learning from nature.

It is much easier to change how you think by changing your behavior， than it is to change your behavior by changing how you think. Act out the change you seek.

最好的报复就是巨大的成功。