真理的概念在任何足够强大以包含算术的形式系统中都是不可定义的。

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.

这寡独的黄昏，幕着雾与雨，我在我的心的孤寂里，感觉到它的叹息。

We didn't get here by luck, but by hard work and wisdom.