Suppose that there's a gene that makes you gay if you were bottle-fed but that has some completely different effect if you were breast-fed. So in the days before bottles were invented that gene would not have manifested itself as gay behavior, but now that bottles are common it can do so.
Richard DawkinsThe body is a survival machine programmed to propagate the genes that reside inside it.
Richard DawkinsReligious people are atheists about all other gods, atheists only take it one god further.
Richard DawkinsWe have this one life, let's enjoy it, let's live it to the full and don't get so worked up about don't identify yourself so passionately with this business called religion.
Richard Dawkins