Bygone Beliefs

This is a biographical and intellectual essay about the 13th-century English friar and philosopher Roger Bacon, written in an academic-popular register likely from around 1914 (the year of Bacon's septcentenary commemorations). It traces Bacon's life from his studies at Oxford and Paris through his Franciscan imprisonments for "suspected novelties," to his posthumous rehabilitation after the 1733 publication of his *Opus Majus*. The essay's central argument is that Bacon's true greatness lies not in specific discoveries — the author methodically debunks or qualifies his credit for gunpowder, telescopes, and other innovations — but in his foundational grasp of scientific method as the union of mathematical reasoning and controlled experiment. A notably distinctive claim is that Bacon surpasses Francis Bacon as a methodologist precisely because Roger insisted on mathematics alongside experiment, whereas Francis disdained mathematics, and that modern chemistry's mathematical revolution vindicates Roger's approach. The essay also defends Bacon's beliefs in alchemy and astrology as intellectually rational given the evidence available in his era, reframing them as signs of rigorous hypothesis-following rather than superstition. Overall, it reads as a rehabilitation argument: correcting both the medieval caricature of Bacon as a black-arts magician and the more modern tendency to credit him with discoveries he did not quite make, in order to identify where his genuine historical significance actually lies.

Bygone Beliefs

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