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.

不要让其它人说他们比你强。

我对自己的工作如此着迷，以至于几乎等不及早上起床就开始工作。