Roger Bacon (1214? -1292?) - Franciscan monk, lonely rebel, a man of his time, nicknamed "worthy of surprise" - Doctor mirabilis. Within this culture are the phenomena of thinking of the prisoner and sufferer and his persecutors - zealots of the strengthened Dominicanism of the XIII century. Bacon is a tireless fighter, but not against, but for... For the crystal purity of the early Christian canon. Overthrowing false authority in the name of authoritarianism as a principle; rebellion against magical warlock in the name of divine magic; for experience in support of experience internal, giving insight; protest against dark scholasticism in the name of clear arguments.