Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be. Many things prevent knowledge including the obscurity of the subject and the brevity of human life.

The materials we use should tell a story - the story of where they come from and the people who work with them.

The joy of discovery is what drives mathematicians forward.

好人不需要法律告知他们负起责任，恶人总是绕法律边缘而行。