The famous saying of giving and returning.

Where there is a will, there is a way. If you burn your bridges, you will end up in Chu. Hard-working people live up to expectations, and 3 thousand armor can swallow Wu.

Accept a drop of water when necessary, and I will repay your kindness with spring water.

Licking calves, kneeling for milk.

Give it a peach and give it a plum.

The meaning of life is to give, not to receive, nor to struggle. -Ba Jin

The only most provable causal relationship in the world; You will get as much as you work hard.