数学中最重要的是理解概念,而不仅仅是记忆公式。
Great deeds are usually wrought at great risks.
"To be Irish is to know that in the end the world will break your heart."
Caring too much for objects can destroy you. Only—if you care for a thing enough, it takes on a life of its own, doesn’t it? And isn’t the whole point of things—beautiful things—that they connect you to some larger beauty?