"... This cannot go on to infinity because then there would be no first mover and consequently no other mover seeing that subsequent movers move only in as much as they are put in motion by the first mover" - Aquinas
"It is necessary to arrive at a first mover put in motion by no other and this we call God" - Aquinas
"there must exist something, the existence of which is necessary" - Aquinas
"From observing the growth of a hair can we learn anything concerning a generation of Man" - David Hume