所有行为都是由某种形式的驱力减少所驱动的。

真相很少是纯粹的，也从来不是简单的。

心理学理论的价值是由其实用性衡量的。

The course of history is shaped by the will of individuals.

The best innovations often come from challenging the status quo.

You must change nothing in your writing without absolute necessity. If it is necessary， then change with simplicity.

大约99%的时候，最佳时机就是现在。