Give or take?

You need to give and take in this world.  If all you ever do is give, you'll fall over from being unbalanced.  If you all ever do it take... eventually, you'll fall over because no one will help you up.

If your are tired, then rest

You need to take care of yourself.  If you don't then how can you take care of others.  I know I am guilty of not looking out for myself when I need to - I always say - "I have too much to do to sit down."  Then I fall down.  Not good.  I will sit down when I need to for now on.