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 best investment you can make is in yourself.

我们都是未间断谱系的产物。

I wonder how many people I've looked at all my life and never seen.

凡是大国之所以不攻打小国的,必定是由于这个小国粮食充足,城郭修筑坚固,上下和谐一心。

历史给我们的教训是，人们从来都不知道汲取历史的教训。

Innovation is not just about technology; it's about changing the way people think and act.