"He lived in a corrupt age, and he aspired to be the great reformer of the Church of his day as his friend Simon de Montfort was of the State. ...Robert Grosseteste was also the most learned man of his time, not only in England, but in all Europe, and one of the most voluminous writers that England has produced. He was the greatest theologian, the greatest natural philosopher, the greatest master of language, of his day. His works which are almost all still imprinted are more than 200 in number and are upon almost every subject of theology and science."