Accidents

If the solar system was brought about by an accidental collision, then the appearance of organic life of this planet was also an accident, and the whole evolution of man was an accident too. If so, then all our thought processes are mere accidents – the accidental byproducts of the movement of atoms. And this holds for the thoughts of the materialists and the astronomers as well as for anyone else. But if their thoughts – of materialism and astronomy – are merely accidental byproducts, why should we believe them to be true? I see no reason for believing that one accident should be able to give account for all of the other accidents.

–C.S. Lewis, The Business of Heaven, 1984.