解决数学问题的旅程和解决方案本身一样重要，因为它教会我们耐心、坚持和发现的快乐。
In my country we go to prison first and then become President.
现实主义不是复制自然，而是理解其本质。
You think when you wake up in the mornin yesterday don't count. But yesterday is all that does count.