Mathematics is not a spectator sport; to understand it, one must engage with it actively.

"I don't take anything for granted. I work for everything I achieve."

黑暗不在外面，而在我们内心。

The next green revolution must be both productive and environmentally responsible.

In science, we try to explain what we don't understand. In mathematics, we try to understand what we can't explain.

未经反思的人生是不完整的人生。