如果耕种天地，不将天地整理好，这样就相当于是胡闹。耕种天地，一定要将土地平整翻新，然后再去播种。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
In mathematics, the art of proposing a question must be held of higher value than solving it.
True intelligence is seamless service, not showing off tech.