Here are some great quotes by American spiritual teacher, author, and lecturer, Marianne Williamson:
The practice of forgiveness is our most important contribution to the healing of the world.
Joy is what happens to us when we allow ourselves to recognize how good things really are.
We are not held back by the love we didn’t receive in the past, but by the love we’re not extending in the present.
We think we need to understand people to know whether or not they’re lovable, but in fact until we love them we can never understand them.