(1) Drop your own sweat, eat your own food, do your own thing, rely on people and ancestors, not heroes!

(2) Self-reliance and sweet life; Bow and scrape, life is short.

(3) The ancients learned nothing, and it takes time to grow old. What you get on paper is so shallow that you never know what you have to do.

(4) Let us do what we can, which is the main pursuit of our life. )