Optimism is a learned skill.

Love is not a victory march, it's a cold and it's a broken hallelujah.

写作就是重写。

大分子的概念并不容易被接受；它需要化学家对物质结构的思考方式发生彻底的改变。

Success is not about how much money you make, but how many lives you touch.

记忆就像一只狗，它喜欢躺在哪里就躺在哪里。