LOL I lack the desire to be totally rational, and I admit it. It's because I'm doubtful everything can be explained by rational means, as we don't know the limits or extents of rationality or science.
I love science, and read it extensively, teach it to my children, teach them what I know, which includes evolution of course, and yet I'm cautious as to the limits of science, especially currently, because we're just scratching the surface of the really deep stuff, like quantum physics.
I just want to be open to when the limits of our knowledge change. I don't want to be Simon Newcomb, a noted astronomer doubting whether heavier than air flight was possible in 1906, when he'd been seeing birds fly all his life, or Sir Harold James Spencer not believing that heavier than space flight is impossible two weeks before the launch of Sputnik or Einstein boggling over Schroedinger's cat.