Evidence.

What do you need to know something exists? Scientific proof with graphs, facts, figures, and variables? A study from a prestigious university or maybe just a news report with some facts from your favorite news anchor? You know evil exists in the world. We see people die every day, maybe not first hand. You feel jealousy, anger, resentment, or other emotions in your heart. But do you SEE evil? Can you tell me what it looks, smells, feels, tastes, and sounds like? No. What you can tell me, though, are the consequences of acting on it--acting on a force that exists in our world, in humanity. Do you deny it exists? No. Because we see the consequences everyday. Cancer. Death. Sadness. Not being able to protect the ones who are dear to us from the pain of this world. Not being able to protect ourselves from disappointment and pain.

Then why is it so hard to believe that there is something opposite at work, too? Goodness, righteousness, loveliness, happiness, aren't those feelings you enjoy/. Have you gotten up to see the sun rise? Not a morning person? Watch it set each night. Remember when there was a pocket of people paying for each others coffee at Starbucks? What about holding the door open for someone or helping the neighbor with yard work? Did you have a teacher who went out of his or her way to explain something to you so you could understand it? We can no longer refuse to SEE the consequences of good. Don't deny it exists. It needs to be seen, yearns to be recognized. When we don't SEE, we suffer, our future suffers. Ps 52:1 "...Why do you boast in evil, O mighty man? The goodness of God [endures] continually."
Rejoice in the goodness of the day that is at your hands and share it with those that have been given to you. Choose to see the Goodness.