真正的挑战不在于解方程，而在于理解解的含义。
The real challenge is not in solving the equations, but in understanding what the solutions mean.
“唯一真正无限的是人类的灵魂。”
我从不考虑过去，我总是考虑下一场比赛。
Innovation is not about working behind closed doors, but about open collaboration.
Writing is a way of reclaiming one's voice.
Variant: All human actions have one or more of these seven causes: chance, nature, compulsions, habit, reason, passion and desire.