Before the rediscovery of Aristotle exerted such a general influence on the form of education, there was a real revival of classical literary culture at Chartres and a few other schools, and John of Salisbury (d. 1182) in his _Metalogicus_ advocated literature as an instrument of education and lamented the barrenness of a training confined to the subtleties of formal logic. But the recrudescence of Aristotle accelerated the movement in favour of dialectic, though at the same time it furnished topics on which logic could be exercised which only a bare materialism can esteem unimportant. The weaknesses of the general educational system which grew up within scholasticism were that haste to begin dialectic led to an undue curtailment of previous liberal culture, and that exclusive attention to philosophical and theological questions caused a neglect of the study of the physical world and a disregard of the critical functions of the intellect. Doubtless there were exceptions, of which perhaps the most striking is the work in physical science done at Oxford by Roger Bacon (1214-1294). But Albertus Magnus (1193-1280), the master of St Thomas, was also a student of nature and an authority for his day on both the natural and the physical sciences. And the work of Grosseteste (d. 1253), as chancellor of the university of Oxford, shows that care for a liberal literary culture was by no means unknown. Always there were such examples. But too often boys hastened to enter upon dialectic and philosophy as soon as they had acquired sufficient smattering of colloquial Latin to engage in the disputes of the schools. A deterioration of Latin was the unavoidable consequence of such premature specialization. The seven liberal arts were often not pursued in their entirety, and students remained satisfied with desiccated compendia of accepted opinions. Thus the encyclopaedias of general information which were in general use during the middle ages show little or no advance in positive knowledge upon the treatment of similar subjects in Isidore of Seville. The foundation of universities.