Rational versus rationalising beings

"Life is about faith. Jesus knew that most of what we do in life is simply taken on faith. We like to think we are rational beings living logical lives based upon objective facts. But the truth is, we are rationalising beings who base most of our decisions on what we feel or believe and come up with the logic to justify our actions afterwards. We don't really know as much as we think we do. "

(Excerpt from Jesus The Greatest Therapist Who Ever Lived)