拥有得越多，欲望就越大。

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 future is a mirror that reflects the past, but the image is always distorted."

实现明天的唯一限制将是我们今天的疑虑。