工程事业，必学术经验相辅而行，徒恃空谈，断难任事。
工程事业必须学术和经验相辅相成，仅靠空谈绝对难以胜任。
当没有人相信你时，你必须相信自己。
The future rewards those who press on. I don't have time to feel sorry for myself. I don't have time to complain. I'm going to press on.
Mathematics is the language with which God has written the universe.
If you can keep your head when all about you are losing theirs and blaming it on you...