The only way to learn mathematics is to do mathematics.

We must always be learning, because the field of computing is always evolving.

Boundaries define us. They define what is me and what is not me. A boundary shows me where I end and someone else begins, leading me to a sense of ownership.

有小聪明的人不能让他谋划大事，有小忠诚的人不能让他掌管法律