Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
记着时间就是金钱。
The challenge for us is to create content that is compelling and relevant.
我不会为了名利而失去自己。
An understanding of the natural world and what's in it is a source of not only a great curiosity but great fulfillment.
Never stop learning—the moment you think you know everything is the moment you start falling behind.