The teacher must believe in the potential of his students.
P与NP问题是计算机科学中最重要的未解决问题之一。
I'm not a politician. I'm just a guy who wants to make music and have fun.
The progress of science consists in the expansion of the field of experience.
You have to be willing to take risks, because the biggest risk is not taking any.
唯一的限制是你自己设定的限制。