I don't think you should ever have to apologize for your excitement.

The child is not a passive recipient of knowledge but an active participant in the learning process.

Looking back at the 21-year-old that I was at graduation, is a slightly uncomfortable experience for the 42-year-old that she has become. Half my lifetime ago, I was striking an uneasy balance between the ambition I had for myself, and what those closest to me expected of me.

A felicidade é feita de pequenos momentos.

I hope my music can accompany everyone through every stage of life.

里氏替换原则是面向对象编程中的一个基本概念，确保派生类可以替代其基类使用，而不会改变程序的正确性。

最重要的是享受你的生活——要快乐——这才是最重要的。