As to the gods, I do not know whether they exist or not, nor what they are like in form; for there are many things that hinder sure knowledge, the obscurity of the matter and the shortness of human life.
效率和道德必须齐头并进；没有另一方，任何一方都无法蓬勃发展。
You are never too old to set another goal or to dream a new dream.
计算机科学中的挑战不仅仅是解决问题，而是找到正确的问题来解决。
The only person you should try to be better than is the person you were yesterday.
It is human nature to think wisely and act foolishly.