What is the difference between a Turing machine and the modern computer? It's the same as that between Hillary's ascent of Everest and the establishment of a Hilton hotel on its peak.

心是孤独的猎手，且永远如此。

真理不在光明中被发现，而在我们不敢直视的阴影中。

Chemistry is not just a science; it’s a way of seeing the world.

我们用来描述世界的词语就是世界本身。