——1941年与美国外交官阿弗雷尔·哈里曼（Averell Harriman）的谈话
世界上充满了门，每一扇门都是一个选择。
The joy of mathematics is in the struggle to understand.
The most profound question is not about the existence of God, but about the existence of the world.
The friendship of a gentleman is light as water; the friendship of a small person is sweet as honey.
The most valuable asset any organization has is its people—invest in them wisely.