我们都被某些事情打碎过。我们都在某种程度上被生活伤害过。但我们可以被修复。我们可以再次变得完整。
Every problem in mathematics is a puzzle waiting to be solved, and the joy is in the solving.
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.