The desires， and other passions of man， in themselves， are in his own power； his real difficulties are， to know when they are to be controlled， and when not.
数学的研究是所有智力和精神进步不可或缺的基础。
Every mathematical problem has a solution; it's just a matter of finding the right perspective.
生命中最重要的问题往往没有答案，而我们必须学会与这些问题共存。
我们必须保持好奇心，永远不要停止对周围世界的质疑。
I'm the worst thing since Elvis Presley, to do Black music so selfishly.