The anarchic nature of the international system means that states must rely on self-help to ensure their survival.
国际体系的无政府性质意味着国家必须依靠自助来确保其生存。
历史不是过去——它是我们组织对过去无知的方法。
I like to take things slowly, step by step. I don't want to rush anything in my life.
数学的快乐来自于为理解而奋斗。
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.