In mathematics, as in life, the most elegant solutions often arise from a deep understanding of the problem.
你必须对自己的能力有信心,然后足够坚强地坚持下去。
预测未来最好的方式就是创造未来。
【译文】用心算计别人反而时时出错,退一步考虑事情路子就会很宽。
The mind is not a passive mirror of the world but an active participant in constructing reality.