过去是一个跟随我们的影子，但它不必定义我们。

我不在乎过去，我在乎未来。

人生不是任天堂游戏，你没有重来的机会。

The natural price of labor is that price which is necessary to enable the laborers, one with another, to subsist and to perpetuate their race, without either increase or diminution.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

我们每一次的观察都是向解开宇宙之谜迈近的一步。