Vives introduced his educational ideas in his writing, "De anima et vita" in 1538. In this publication, Vives explores moral philosophy as a setting for his educational ideals; with this, he explains that the different parts of the soul (similar to that of Aristotle's ideas) are each responsible for different operations, which function distinctively. The first book covers the different "souls": "The Vegetative Soul;" this is the soul of nutrition, growth, and reproduction, "The Sensitive Soul," which involves the five external senses; "The Cogitative soul," which includes internal senses and cognitive facilities. The second book involves functions of the rational soul: mind, will, and memory. Lastly, the third book explains the analysis of emotions.