Love is not a profession, it's a condition.

经济理论提供工具，但现实世界的测试会完善它们。

书籍不仅仅是物品；它们是经历，它们改变我们。

Learning is the process of modifying symbolic structures to improve performance.

最好的故事是那些在最后一页之后仍久久萦绕在脑海中的故事。

The more we love our friends， the less we flatter them； it is by excusing nothing that pure love shows itself.