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.

Each unexpected death forces me to confront limits of my own life
Why did I really feel annoyed? They were happy; I was jealous
Understanding often matters more than solving someone’s problems
Goodbye, Thomas (1994-2012)
Town’s new fine for public profanity points to problem of ‘public’ spaces
What if Jesus was serious about commands he gave his followers?
Something in us usually wants to believe next year will be different