 At the institutional level, Luther’s concern was over the place of Aristotle within the universities, which had been cemented through the decision in 1255 of the faculty of liberal arts in Paris to include all Aristotle’s known works within the curriculum. This is the context of Luther’s assertion, in To the Christian Nobility of 1520, that in the universities “the blind pagan teacher, Aristotle, is of more consequence than Christ”, so that the universities “need a good, thorough reformation” (WA 6:457/LW 44:200) in order to replace the centrality of Aristotle’s works with the study of scripture and of the Christian faith—and Luther was not alone in having this concern. He thus argues that Aristotle’s Physics, Metaphysics, De anima, and Ethics should all be removed from the curriculum, while his Logic, Rhetoric and Poetics should be retained in an abridged form without commentary, as aids to speaking and preaching. In this way, Luther clearly hoped, rather than “labouring with persistent industry to comprehend only Aristotle” (Explanations of the Ninety-Five Theses 1518, WA 1:611/LW 1:222), students would have time to devote themselves to the more worthwhile study of the Bible  instead.[21]