On Generation and Corruption

The processes of coming into being and passing away are analyzed in this scientific exploration of change in the natural world. Aristotle distinguishes generation from simple alteration, proposing that the four elements—earth, air, fire, and water—transform into one another through the exchange of qualities. The text examines the cyclical nature of life and matter, rejecting the idea of a void and focusing on the continuity of physical substance. It lays the groundwork for understanding growth, decay, and the perpetual transformation of the material universe.