The only limits in life are the ones you make.
生活中唯一的限制是你自己设定的。
数学不仅仅是关于数字、方程、计算或算法:它是关于理解的。
The most basic human desire is to be recognized as a human being, and the most basic human fear is to be treated as less than human.
如果一个想法在一开始不是荒谬的,那它就是没有希望的。