The talent for being happy is appreciating and liking what you have, instead of what you don't have.
欣赏和喜欢你拥有的东西，而不是你没有的东西，你才能快乐。
The only way to learn mathematics is to do mathematics.
不犯错就无法创作艺术。
创作是与世界互动，而不是逃避它。