Ancient history

The two ancient greek theories of matter were the what theories?

* Atomism: This theory, proposed by Democritus and Leucippus, held that all matter is composed of tiny, indivisible particles called atoms. Atoms were thought to be indestructible and eternal, and to come in different shapes and sizes.

* Hylomorphism: This theory, proposed by Aristotle, held that all matter is composed of two fundamental principles: matter (hyle) and form (morphe). Matter was thought to be passive and shapeless, while form was thought to be active and responsible for giving matter its specific properties.