The more you accomplish, the more you want to accomplish.
一个好的数学家是能看到定理之间类比的人;一个伟大的数学家是能看到类比之间的类比的人。
过去是一个不会停止纠缠你的幽灵。
Noman giveth to himself that liberty, to take from himself his life, or any part thereof.