Courtesy costs nothing. Lower the toilet seat after use. Let the people in the elevator exit before you enter. Return shopping carts to their designated areas. When you borrow something， return it better shape (filled up， cleaned) than when you got it.

The trees, like the longings of the earth, stand a - tiptoe to peep at the heaven.

译文：历史是人的镜子。司马光编纂《通鉴》的核心目的，即“以史为鉴”。

质量不是一种行为，而是一种习惯。

艺术应该是危险的——它应该让你有所感受。