Lacking knowledge can Result in Negative and Evil possibilities so we All must try to Learn from Every Experience.

This is from plato so it is a very old quote that has survived many hundreds of years of human life. Ignorance is the main thing that causes evil and wickedness in our world, when people understand things better and more fully they can achieve goodness and help the fellow man much more often. As long as you are trying to learn and be better, then you will be fighting against ignorance and evil.

https://www.brainyquote.com/quotes/plato_398192