In his autobiography, Darwin wrote that "The old argument of design in nature, as given by Paley, which formerly seemed to me so conclusive, fails, now that the law of natural selection has been discovered".
Dalam otobiografinya, Darwin menulis bahwa "Argumen dari perancangan di alam yang lama, seperti yang diberikan oleh Paley, yang sebelumnya tampak begitu meyakinkan, gagal, sekarang begitu hukum seleksi alam telah ditemukan".