If you are not deaf or blind, you are not worthy to be a master. The next sentence is that long-term residence makes people mean, and poverty makes relatives scarce. Don't be too hard on people. People are imperfect. You should know how to turn a blind eye. Although many people want their families or subordinates to be perfect and fully meet their own requirements. But people are inherently imperfect, and everything can't be perfect.

If the requirements are too harsh, it will not only offend people, but also hurt people's self-confidence, and finally get worse and worse. Therefore, as long as some things do not violate the principles and bottom line, we must know how to turn a blind eye properly, so as to leave a good impression on people and not be so tired.

Classic proverb

It is wrong to care about everything with your heart, but it is difficult to think about everything the other way around: this sentence teaches people not to care too much about gains and losses, because the world is not perfect. If you haggle over everything, you will feel that everything you do is wrong, and you will be tied behind your back in the future. Don't worry too much before you do something, and don't think about what to do if you fail.

If you take a step back and think about everything like this, you will accomplish nothing in the end. You won't know whether you will succeed unless you do it. It is necessary to be considerate, but you should also be prepared to bear the failure. After all, everything is risky, and people who are afraid of wolves and tigers can never do anything.

No one is perfect, and the melon is not round: this sentence means that there are no perfect people in the world, and even watermelons are not completely round. This sentence warns people to accept people's imperfections, so that they will not be disappointed and live so tired. The pursuit of perfection is a never-ending road, so we should be content with enough.