我是另一個。如果銅醒來變成號角，那不是它的錯。
The truth is, I don't know what I'm doing. But I know I'm doing it with all my heart.
You cannot teach a man anything, you can only help him to find it for himself.
Spend each day trying to be a little wiser than you were when you woke up.
在數(shù)學領域，每個問題都是發(fā)現(xiàn)新事物的機會。