On Religion
Karl Marx, Frederick Engels
Fredonia, 2002
200 M3920
At that time natural science also developed in the midst of the general revolution and was itself thoroughly revolutionary; it had indeed to win in struggle its right of existence. Side by side with the great Italians from whom modern philosophy dates, it provided its martyrs for the stake and the dungeons of the Inquisition. And it is characteristic that Protestants outdid Catholics in persecuting the free investigation of nature. Calvin had Servetus burnt at the stake when the latter was on the point of discovering the circulation of blood, and indeed he kept him roasting alive for two hours; for the Inquisition at least it sufficed to have Giordano Bruno simply burnt alive. -p.154