Who thought everything was made of fire earth air and water?

Empedocles (around 490-430 BC) was a Greek pre-Socratic philosopher and a citizen of Agrigentum, a Greek city in Sicily. Empedocles' philosophy is best known for being the originator of the theory of the four Classical elements, earth, air, fire and water.

A:The ancient Greek philosopher Aristotle dismissed Democritus' theory of atoms and believed Empedocles theory that everything on Earth was composed of 4 elements, which are fire, earth, air, and water; he also said that objects in the heavens (the sun & stars etc.) are composed of a fifth element which he called the quintessence (meaning fifth element). Although we now know that the universe is much more complicated than that, Aristotle is quite right if we take this to mean phases of matter, with the phases on Earth being solid (earth) liquid (water) gas (air) and plasma (fire); the quintessence, as it turns out, is also plasma.