Don't mind your own business and talk less.

● It's none of your business. Hang it high. If you know that something is wrong, it is better to talk less ● If you don't do it yourself, don't care ● If you have something, don't hide it ● Eat less salted fish and get thirsty ● Don't care about the ancients ● Mind your own business, don't mind your own business.

It's none of your business, hang high; It's better to talk less when you know it's wrong; "Be wise to preserve our health, but ask for nothing" is what Mao said in "Against Liberalism". It means that if you think something has nothing to do with yourself, just put it aside. Throw things that have nothing to do with you away.

To preserve our sanity is the motto of feudal society. Smart people are good at protecting themselves. Now it refers to the attitude of avoiding the struggle of principles and being afraid of involving yourself. This refers to a personal attitude towards others, caring about personal interests and avoiding principled struggles. But nothing else: but: only, as long as; O: error. Pursue nothing but fault. Describe being conservative and mediocre, afraid of making mistakes.