Children's books should challenge as well as comfort.

关系型数据库管理方法不仅仅是一种技术；它是一种关于数据的思考方式。

原文英文：The most merciful thing in the world， I think， is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity， and it was not meant that we should voyage far.

Success is a journey, not a destination.

活着就是处于持续的反叛状态。