The highest manifestation of life consists in this: that a being governs its own actions. A thing which is always subject to the direction of another is somewhat of a dead thing.

Our heroes are human heroes. That's a very new situation. Most other societies have had, right at their center, the worship of something transcendent: a god, a spirit, a natural force, the universe, whatever it is -- something else that is being worshiped. We've slightly lost the habit of doing that, which is, I think, why we're particularly drawn to nature.

那些疯狂到认为自己能改变世界的人，往往真的改变了世界。

成为一体，团结一致是伟大的。但尊重差异的权利可能更伟大。

我们银河系的中心是一个极端物理学发生的迷人地方，能研究它是我的荣幸。