There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.

商业中最危险的一句话是："我们一直都是这么做的。"

计算机科学中的挑战不仅仅是解决问题，而是以一种既高效又优雅的方式解决问题。