We must fight for the freedom of religion; because that is the only way we can stand against irrationality. - M.F. Moonzajer
One might equate growing up with a mistrust of words. A mature person trusts his eyes more than his ears. Irrationality often manifests itself in upholding the word against the evidence of the eyes. Children, savages and true believers remember far less what they have seen than what they have heard. - Eric Hoffer
The irrationality of a thing is no argument against its existence, rather a condition of it. - Friedrich Nietzsche
Irrationality is the exclusive preserve of humans as among all creatures only we have the power to rationalise, that being the art of packaging patently irrational as apparently rational. - R.N. Prasher
Reality is, you know, the tip of an iceberg of irrationality that we've managed to drag ourselves up onto for a few panting moments before we slip back into the sea of the unreal. - Terence McKenna