2 + 2 = 5

If one is convinced that 2 + 2 = 5, then that is proof alone.

'Sometimes the Bible in the hand of one man is worse than a whisky bottle in the hand of (another)... There are just some kind of men who - who're so busy worrying about the next world they've never learned to live in this one, and you can look down the street and see the results.'
Miss Maudie Atkinson