V. S. Naipaul

Everything about me is a contradiction, and so is everything about everybody else. We are made out of oppositions; we live between two poles. There's a philistine and an aesthete in all of us, and a murderer and a saint. You don't reconcile the poles. You just recognize them.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.