The only thing that can stop you is you.

There are still many causes worth sacrificing for, so much history yet to be made.

你信任的不是工具——工具只是工具——它们要么工作，要么不工作。你信任的是人，或者不信任。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

只要心中有远大的志向，没有不能达到的地方；而心中所追求的，则没有任何困难可以阻拦。