This book analytically contrasts al- Ghazali's (c.1055-1111) and Ibn Rushd's (c.1126-1198) views on the cognitive functions of the human soul and its role and effect on knowledge acquisition. The five concepts of ilm (knowledge), ruh (spirit), nafs (soul) aql (intellect) and qalb (heart),are defined according to exegetists, theologians, jurists, lexicographers and philosophers. The book mainly focused on the external and internal senses of the human soul and critically analyzes al-Ghazali and Ibn Rushd's perception of the cognitive functions of the human soul, in terms of their positioning...