The whole sentence is: going in and out will eventually do harm to people.
Solution: (property) obtained by improper means will also be taken away by others by improper means. You hurt yourself and others.
The poems that harm others and yourself are:
1, what goes around comes around, it's not that you don't report it, it's not time.
2. Good and evil will be rewarded.
If you do something bad, you will suffer the consequences.
4. Don't do it for the small good, and don't do it for the small evil.
5, heaven knows, earth knows, god knows, ghost knows, what is ignorance; Good news, bad news, fast news and late news will all be rewarded in the end.