'Proof' denies faith, and without faith we are nothing. The universe is a divine miracle, Galileo, not a clockwork toy; In this reprimand by Pope Urban in 1624 lies Galileo's tragedy - a mistaken belief that if he supplied the church with proof, he would enlighten the world while escaping persecution. Galileo never understood his differences with the Church were not about reason, logic and scientific fact. They were about politics. When he finally came to realise this, it was too late.