在苏联军队中,撤退比进攻更需要勇气。
——1941年与美国外交官阿弗雷尔·哈里曼(Averell Harriman)的谈话
The purpose of computation is insight, not numbers.
I don’t think about failure.
I don't like being defined because I'm ever-changing.
It's enough for me to be sure that you and I exist at this moment.