There is enough cruelty in the world.
Do not add to it unnecessarily.
You will make mistakes.
No one is perfect.
But do your best to not be intentionally cruel.
And when you slip, own up to it.
Admit your wrongs.
Apologize and try to set things right.
Do not carry the weight of your mistakes with you.
Life provides enough burdens without you creating your own.
Seek compassion and understanding, both for others and for yourself.
Be quick to forgive when you are wronged and be quick to make amends when you wrong others.
Life is short and it is made shorter by cruelty and resentment.