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數學之美不僅在于其抽象的優雅，還在于其建模和解決現實世界問題的深刻能力。

I disapprove of what you say， but I will defend to the death your right to say it.

富貴不能使我的思想迷亂，貧賤不能使我改變志向，威武不能使我節操屈服，這樣的人才稱得上大丈夫。

Don't tell me how good you make it; tell me how good it makes me when I use it.

"Mathematics is the science of patterns, and nature exploits just about every pattern that there is."