The only real prison is fear, and the only real freedom is freedom from fear.
To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
我们不能忽视煤炭的经济作用，但也不能忽视其环境影响。
To be an artist is to embrace uncertainty.
Innovation is not from nothing to something, but from something to better.