   Averroes follows Galen and “the consensus of opinion” rather than Aristotle in locating the internal senses and memory in various parts of the brain: the common sense and imaginative faculty in the forward lobe, the cogitative faculty in the middle, and memory in the  rear.[57] Good memory is said to depend on dryness in the front and back of the brain, poor memory due to moisture that prevents images and ideas from retaining their hold. The best disposition, manifest mostly in youth, is of a middle kind, enabling both quickness of understanding (the positive benefit of moisture) and a long  memory.[58]