When you're depressed, It always helps to lean your head on your arm. Arms like to feel useful.

Success in farming comes from understanding nature, not fighting it.

保持饥饿，保持愚蠢。

The first love is only a little foolishness and a lot of curiosity.

数学推理可以相当系统地看作是两种能力的结合运用，我们可以称之为直觉和独创性。