The elements of consciousness are to be isolated by experimental means.

切勿用权力去压制你认为不利的意见，因为如果你发表意见时也会遭到压制。

森林的真正价值永远不能仅用板材英尺来衡量。

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.

释义：当运气不好的时候，即便是金子也会失去光辉；而好运来临时，即使是铁也会显得光彩夺目。