It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be intelligent.
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 able to love, to share, to go 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.
我必须研究政治和战争,以便我的儿子们可以自由地研究数学和哲学。