You are an irrational person. Yes, you.
That’s not an insult. If you can read this, you’re a human being — and that makes you irrational. In fact, I believe — in all seriousness — that every human being is just a little bit insane. Some form of insanity is a universal “birth defect” among us.
One of the biggest mistakes we make in life is assuming we’re rational. What’s worse, we notice that other people seem irrational and stupid, but almost all of us believe we’re the exception. My way of looking at the world is right and rational. Your way is wrong and irrational. (You probably have evil motives, too.)
You are the hero of your own story. In your own mind, you believe you’re making rational and smart and sane decisions. You believe you have good motives, at least within the context of however you’ve justified your own actions.
I do exactly the same thing. And our mutual blindness about this whole charade leaves us with warped perceptions of the world around us — and of each other.

My need to make others perfect reflects my fear I’m not in control
Flashy ‘stimulus’ projects conceal truth that the state destroys wealth
Feds to trucking co.: You can’t fire the drunk, but you’re liable for him
A bully picked a fight that night — and now I’m dreaming about it
If the state didn’t wither away for Marx and Engels, is there really a post-statist era ahead now?
Arrogance and stupidity go hand in hand for the coercive state
Are your daily decisions giving you the results you want out of life?
Forget your partner’s best traits; worst traits predict your future
If you vote, you’re my real enemy — no matter who gets your vote