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.

卡塞尔文献展必须始终令人惊讶，始终激发思考。

The universe is a hologram, and we are all part of this grand cosmic projection.

I don’t like stress. I don’t like debt. I don’t like to worry. So I try to buy things that are cheap enough so that if they don’t work out, I don’t lose much.