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.

恐惧可以是一个有用的信号，但它不应该是我们唯一倾听的声音。

The interplay between analysis and algebra is the driving force behind many breakthroughs in number theory.

To find out what one is fitted to do, and to secure an opportunity to do it, is the key to happiness.

"The only limit to our realization of tomorrow will be our doubts of today."