You can't wake a person who is pretending to be asleep.

You are always a valuable, worthwhile human being — not because anybody says so, not because you're successful, not because you make a lot of money — but because you decide to believe it and for no other reason.

I'm not a lover, I'm a fighter.

Our scientific power has outrun our spiritual power.We have guided missiles and misguided men.

The best time to sell a stock is almost never.

在数学中，最简单的解释往往是最深刻的。

Money complicates things, but it doesn't change the fact that art is about life and death.

The synergy between theoretical computer science and applied mathematics has led to breakthroughs that were once thought impossible.