Michel de Montaigne quotes - page 14
We are brought to a belief of God either by reason or by force. Atheism being a proposition as unnatural as monstrous, difficult also and hard to establish in the human understanding, how arrogant soever, there are men enough seen, out of vanity and pride, to be the authors of extraordinary and reforming opinions, and outwardly to affect the profession of them; who, if they are such fools, have, nevertheless, not the power to plant them in their own conscience. Yet will they not fail to lift up their hands towards heaven if you give them a good thrust with a sword in the breast, and when fear or sickness has abated and dulled the licentious fury of this giddy humour they will easily re-unite, and very discreetly suffer themselves to be reconciled to the public faith and examples.
Michel de Montaigne