尽管你认为世界在你脚下,但它也可能会颠覆你,践踏你。
Though you think the world is at your feet, it can rise up and tread on you.
一个人的出身并不重要,重要的是他成长为什么样的人。
Freedom does not consist in any dreamt-of independence from natural laws, but in the knowledge of these laws, and in the possibility this gives of systematically making them work towards definite ends.