If you're not making mistakes, you're not trying hard enough.

我不喜欢花哨的东西。

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

我们对自然的自觉认识所能解决的最直接且在某种意义上最重要的问题，是对未来事件的预测，以便我们能根据这种预测安排当前的事务。

如果你不犯错，说明你解决的问题还不够难。