In April, May, and June of 1583 Bruno was in Oxford, although the university and college records make no mention of his name. He must have known it as a stronghold of Aristotelianism; on its statutes stood "that Bachelors and Masters who did not follow Aristotle faithfully were liable to a fine of five shillings for every point of divergence, and for every fault committed against the Logic of the Organon"; and that this was no dead law had been proved a few years before when one Barebones was degraded and expelled because of an attack on Aristotle from the standpoint of Ramus. The only living subject of teaching was theology, there was no real science, and no real scholarship. This peaceful school was not likely to be gratified by the letter which Bruno wrote asking permission to lecture at Oxford; it is printed in the _Explicatio Triginta Sigillorum_:[39] "To the most excellent the Vice-Chancellor of the University of Oxford, its most famous Doctors and celebrated Masters--Salutation from Philotheus Jordanus Brunus of Nola, Doctor of a more scientific theology, professor of a purer and less harmful learning, known in the chief universities of Europe, a philosopher approved and honourably received, a stranger with none but the uncivilised and ignoble, a wakener of sleeping minds, tamer of presumptuous and obstinate ignorance, who in all respects professes a general love of man, and cares not for the Italian more than for the Briton, male more than female, the mitre more than the crown, the toga more than the coat of mail, the cowled more than the uncowled; but loves him who in intercourse is the more peaceable, polite, friendly and useful--(Brunus) whom only propagators of folly and hypocrites detest, whom the honourable and studious love, whom noble minds applaud." The epistle which so begins is the preface to a work on the art of discovering, arranging, and remembering facts of knowledge, by which Bruno hoped to commend himself to the English, as he had succeeded in commending himself to the French universities. He attempted to disarm prejudice by sheltering under the twofold truth--"if this writing appears to conflict with the common and approved faith, understand that it is put forward by me _not as absolutely true_, but as more consonant with our senses and our reason, or at least less dissonant than the other side of the antithesis. And remember, that we are not so much eager to show our own knowledge, as moved by the desire of showing the weakness of the common philosophy, which thrusts forward what is mere opinion as if demonstratively proved, and of making it clear by our discussion (if the gods grant it) how much in harmony with regulated sense, in consonance with the truth of the substance of things, is that which the garrulous multitude of plebeian philosophers ridicule as foreign to sense." [Sidenote: Alasco of Poland.] [Sidenote: The disputation.] [Sidenote: The _Cena_.] [Sidenote: The _Causa_.]