If you don't fail at least 90 percent of the time, you're not aiming high enough.

Sustainability isn't a trend; it's a responsibility we all share for the planet.

Quality is never an accident; it is always the result of intelligent effort.

Quality is not an act, it is a habit.

We are all prisoners of our own stories, but we can choose how to tell them.

我不认为每个人都应该成为数学家，但我确实相信许多学生没有给数学一个真正的机会。

Painting is a language which cannot be replaced by another language.

Every story has an end, but in life every end is a new beginning.