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教師必須為形成較好人類而獻(xiàn)出一切。

The dead are always looking down on us, they say. But we don't look back.

I'm not a role model, I'm a role model for people who don't believe in role models.

The limits of sense are not to be determined by the narrow bounds of our own capacities.

這句話其實是莎士比亞借哈姆雷特之口說的，但是霍金非常喜歡，曾在自己著作中多次引用，所以很多人誤以為本句話是霍金說的。

混凝土不僅僅是材料，它是光的容器。