The importance of Siger in philosophy lies in his acceptance of Averroism in its entirety, which drew upon him the opposition of Albertus Magnus and Aquinas.
In December 1270 Averroism was condemned.
Renan, however, says that he merely tried to justify Averroism against the charge of heterodoxy.
Nearly three centuries latar, it was still studied at Padua, the last home of Averroism, and Lucilio Vanini speaks of him with great veneration.
In such a critical generation the words of Averroism found willing ears, and pupils who outran their teacher.