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 The Intellectual Revival of the Europeans 281 could he have returned to a world in which his works were not so much read as worshipped — and that, as Roger Bacon showed, in these most abominable translations. Throughout his books, a little disguised by the necessity of seeming to square it all with orthodoxy for fear of the prison and worse, Roger Bacon shouted to mankind, " Cease to be ruled by dogmas and authorities ; look at the world ! " Four chief sources AN EARLY PRINTING PRESS {From an old ^nt)