"We are all our own prisons, our own jailers."

粒子的概念只是一种近似，仅在特定极限情况下有效。

我购物故我在。

Motivation is the art of getting people to do what you want them to do because they want to do it.

我们不是从经验中学习……我们是从对经验的反思中学习。

A literatura é a voz dos que não têm voz.