Be yourself, everyone else is already taken.
做你自己，别人都已经有人做了。
The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.
Hope for the best, expect the worst.
樊迟问仁，孔子说：“对人慈爱。”问智，孔子说：“对人了解。”樊迟不理解。孔子说：“以正压邪，能使邪者正。”
In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.
