"Sometimes the most important things are the ones we don’t talk about."

True craftsmanship leaves both the product and the planet better than it found them.

积极心理学不仅仅是感觉良好，而是关于美好的生活。

顾客的感知就是你的现实。

我相信自己和我的能力。

We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.