活着是世界上最罕见的事情。大多数人只是存在，仅此而已。
"To live is the rarest thing in the world. Most people exist, that is all."
The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.
人总是比自己知道的自己更多。他不是一成不变的，而是一个过程。
幸福不是你为未来推迟的东西；它是你为现在设计的东西。
Quality is our lifeline and we must never compromise.
不要为成功而努力，要为做一个有价值的人而努力。