It has been said that what you see in the world reflects what is in your heart.

To a thief, all men are thieves. To a liar, all men are liars. To the person who hurts, all people are out to hurt them.

An optimistic view is also possible.

To a kind person, other people are kind too. To the loving person, other people are loving individuals.

What you see in the world says more about you than about other people.