人不应该相信或不相信,而应该保持怀疑。
One should not believe or disbelieve, but rather remain in suspense.
The best way to find out if you can trust somebody is to trust them.
The challenge in cryptography is not just to create unbreakable codes, but to create systems that remain secure even as technology evolves.
The essence of strategy is choosing what not to do.
The mystery of the universe is in these dots.
释义:不考虑在安逸的环境中要想到危难,用节俭来戒除奢侈,不使自己的道德处于深厚的境界,不能使自己的情欲战胜物质欲望,这就像砍伐树木的根却想要树木长得茂盛,堵塞水的源头却想要水流得长远一样荒谬。 
生活不是一个人所经历的,而是一个人所记住的以及如何记住并讲述它。