人生就像一首歌，有高潮也有低谷。

There is no necessary connection between law and morality.

The power of human cognition comes from its ability to generalize.

"We are all our own prisons, our own jailers."

The ability to be alone is the ability to love. It may look paradoxical to you, but it’s not. It is an existential truth: only those who can be alone are capable of love, of sharing, of going into the deepest core of another human being—without possessing the other, without becoming dependent on the other, without reducing the other to a thing, and without becoming addicted to the other.