I have great faith in fools; self-confidence, my friends call it.
任务不在于看到别人未曾看到的东西,而在于思考别人未曾思考过的东西,关于那些每个人都看到的事物。
A person may cause evil to others not only by his actions but by his inaction, and in either case, he is justly accountable to them for the injury.
The joy of mathematics comes from the moments of clarity when complex things become simple.