自由意味着责任,这就是为什么大多数人害怕自由。
Liberty means responsibility. That is why most men dread it.
所有的暴力都包含一些人强迫另一些人,在痛苦或死亡的威胁下,做他们不想做的事。
The universe constantly surprises us, and that’s what makes science so exciting.
每本书都是作者首先要独自经历的旅程。