Empedocles

Empedocles taught that all matter is composed of four roots (which later thinkers called elements): earth, air, fire, and water. This four-element theory remained the standard explanation of matter in Western thought from antiquity through the Renaissance and influenced Aristotle's own physics.

Empedocles used Love (Philia) and Strife (Neikos) as two cosmic forces that alternately combine and separate the four roots. Under the influence of Love, the elements are drawn together into unity, while Strife drives them apart, creating a cycle of cosmic formation and dissolution.

Empedocles was from the Greek city of Acragas (modern Agrigento) in Sicily, a prominent Greek colony in the 5th century BCE. He was active as both a philosopher and a political figure in the Greek settlements of southern Italy and Sicily.

According to a legend reported by later ancient sources, Empedocles threw himself into the volcanic crater of Mount Etna, supposedly to prove he had become a god. However, this story is generally considered apocryphal by modern historians.

Empedocles wrote in verse, and two major poems are attributed to him: 'On Nature' (Peri Phuseos) and 'Purifications' (Katharmoi). Only fragments of these poems survive, preserved as quotations in the works of later ancient authors.

Yes, Empedocles appears to have taught a form of reincarnation or transmigration of souls (metempsychosis), likely influenced by Pythagorean ideas. In his poem 'Purifications,' he described the soul as being punished and purified through successive rebirths in various forms of life.

Aristotle adopted and modified Empedocles' four-element theory, making it central to his own physics and cosmology. Empedocles' idea that combination and separation explain natural change also informed Aristotle's concepts of generation and corruption.

Empedocles proposed a speculative proto-evolutionary theory in which body parts initially formed independently and combined randomly, with only viable combinations surviving. While not a true theory of evolution by natural selection, it is sometimes cited as an early precursor to such ideas.