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.

真相是脆弱的，容易被打破。

你总能变得更好。

"The greatest glory in living lies not in never falling, but in rising every time we fall."

我们必须承认自己的错误并从中吸取教训。