Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的:它是关于理解的。
Words and deeds are not separate, but intimately connected.
I don’t know what the market is going to do. I just try to buy things that are cheap.
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。
不要害怕犯错误。如果你没有犯错误,你就没有足够努力。