When I got tired, I slept. When I got hungry, I ate. When I had to go, you know, I went.

The only time I know that something is true is at the moment I discover it in the act of writing.

我相信可互换零件的原理将在未来制造业的进步中发挥巨大作用。

在观察的领域里，机遇只偏爱那种有准备的头脑。