The progress of mathematics is measured by the number of problems it can solve.
Efficiency is doing things right; effectiveness is doing the right things.
"Sometimes, the hardest thing and the right thing are the same."
朋友比钱更好。几乎所有金钱能做的事情,朋友都能做得更好。在许多方面,有一个有船的朋友比自己有一艘船要好。
历史上的每位暴君都相信自由——他自己的自由。