光的原因不在于颜色，而在于光本身。

I always try to be positive and optimistic in life.

The best scientists are those who remain humble in the face of nature's complexity.

我相信可互换零件的原理将在未来制造业的进步中发挥巨大作用。

人之所以为人，是必须充满精力，自我悔改，自我反省，自我成长，并非向人抱怨。