You're sincere, but in order not to upset your views you avoid talking with people who think differently. You pick your thoughts from conversations with people like yourself, from books written by people like yourself. In physics they call it resonance. You start out with modest opinions, but they match and build each other up to a scale.
Aleksandr SolzhenitsynThis deliberately nurtured hatred then spreads to all that is alive, to life itself, to the world with its colors, sounds, and shapes, to the human body. The embittered art of the twentieth century is perishing as a result of this ugly hate, for art is fruitless without love. In the East art has collapsed because it has been knocked down and trampled upon, but in the West the fall has been voluntary, a decline into a contrived and pretentious quest where the artist, instead of attempting to reveal the divine plan, tries to put himself in the place of God.
Aleksandr Solzhenitsyn