"On Generation and Corruption" is a work by the ancient Greek philosopher Aristotle, in which he explores the nature of change, causation, and the elements that make up the world. Aristotle begins by arguing that change is a fundamental aspect of the natural world, and that all things are constantly in a state of change. He then proceeds to analyze the different types of change, such as growth, decay, and alteration, and explains how they relate to one another.