Every equation we write is a poem of the universe, a verse in the grand epic of existence.
The biggest risk is not taking any risk.
Everyone is in favor of free speech. Hardly a day passes without its being extolled， but some people's idea of it is that they are free to say what they like， but if anyone else says anything back， that is an outrage.
The only real freedom is the freedom to be yourself.
计算机科学的挑战不仅在于创造新技术，还在于确保它们被道德和负责任地使用。