Atomism
In natural philosophy, atomism is the theory that all the objects in the universe are composed of very small, indestructible building blocks - atoms. Or, stated in other words, that all of reality is made of indivisible basic building blocks. The word atomism unquestionably derives from the ancient Greek word atomos which can be parsed in to a-tomos (not cutable) - tomos being a form of the Greek verb temnein (to cut) - meaning that which cannot be cut into smaller pieces. Atomists are sometimes called Later Ionians. Martin Bernal, however, supported the argument that that the reputed founders of atomism, Leucippus and his student Democritus coined atomos from the name of the Egyptian solar deity Atum after returning from Egypt.

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