The article deals with the concept of a human being with respect to its composition from soul and body. The discussion of this topic was very important and fruitful in the 13th century. It was stimulated by Aristotle's writings appearing at that time in Christian Europe. The article focuses on the most important 13th century authors who contributed to that discussion: Albert the Great, Bonaventure, Thomas Aquinas, and Latin averroists. During this discussion of soul and body, there was a shift from a platonic philosophical framework to an Aristotelian one. It also resulted in the Church doctrine of human soul.