To do mathematics is to explore a universe of ideas, where the only limit is your imagination.

Consumer trust is hard to earn but can be lost in an instant, we must always remember this.

One can only display complex information in the mind. Like seeing, movement or flow or alteration of view is more important than the static picture, no matter how lovely.

在数学中，你并不理解事物。你只是习惯了它们。