To live is the rarest thing in the world. Most people exist, that is all.
活着是世上最稀有的事情。大多数人只是存在而已。
数学的本质在于它的自由。
"What lies behind us and what lies before us are tiny matters compared to what lies within us."
避免麻烦的最大方法之一就是保持简单......系统经常会失控。