You may have to wait a long time to have your revenge on someone, but it will still be worth having.
To achieve success you have to make difficult decisions (and possibly hurt yourself or others).
You are more secure if you are one of a crowd.
Don't take a risk. You may regret it.
Don't risk all your money, hopes, etc. on one thing. (Have an alternative plan.)
Take care of yourself. Don't worry about others.
This proverb is often used in criticizing people who think only of themselves.
Do not rely on other people to do something for you. You yourself can do it best.
People are more likely to be wronged or harmed by themselves than by others.
If you employ others, get them to work for you. Why work yourself?