你必须对你所做的事情充满热情,否则你永远不会出类拔萃。
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
The art of education must be to bring the child to the point where he can educate himself.
未来属于那些敢于重新思考现状并大胆行动的人。