How fortunate are some people to be sure.
Some people know just what they think about everything.
All the time.
Their opinions never change.
They are sure.
They know that this political viewpoint, this diet, this way to dress, this way to spend money, this way to worship, is The Correct Way.
Other dissimilar ideas are not only incorrect, but at best, benighted, and at worst, evil.
It must be a comfort to go to bed at night and never question anything you've said or done all day.
I wouldn't know: I keep taking in and evaluating that pesky New Information instead of dismissing it as lies.