Thus Vanini placed reason in opposition to faith and church dogma, as had already been done by Pomponatius (_supra_, p. 111) and others. Yet all the time that they were proving by reason this or that dogma which is in direct contradiction to the Christian belief, they were declaring that they submitted their conviction to the Church—a course which was always adopted by Bayle afterwards in the reformed church. Another practice of these philosophers was to bring forward all sorts of arguments and theories contradictory of theological dogmas, as so many insoluble difficulties and contradictions brought about by reason, which were, however, by them submitted to faith. Thus, for instance, Bayle says in the article “Manichæans” found in his critical _Dictionnaire_—in which he touches on many philosophic conceptions—that the assertion of the existence of two principles cannot be disproved, but that we must submit herein to the Church. In this fashion all possible arguments were advanced against the Church. Vanini thus states objections against the Atonement, and brings forward arguments to prove that Nature is God. Now men were convinced that reason could not be contradictory of the Christian dogmas, and no faith was placed in the sincerity of a submission which consisted in giving up what one was convinced of by reason; therefore Galileo, because he defended the system of Copernicus, had to recant on his knees, and Vanini was burned at the stake. Both of them had in vain chosen the dialogue form for their writings.