We don't stop playing because we grow old; we grow old because we stop playing.
我们不是因为变老而停止玩耍,而是因为停止玩耍而变老。
Sometimes it's the journey that teaches you a lot about your destination.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
We are not interested in the spectacular. We are interested in the specific.
I don't wait for moods. You accomplish nothing if you do that. Your mind must know it has got to get down to work.