Who said "All change is merely rearrangement of eternal atoms."?

This quote is attributed to Leucippus.

All change is merely rearrangement of eternal atoms. - Leucippus

"All change is merely rearrangement of eternal atoms."

Leucippus Change

Philosopher Ancient Greece 500–440

"Nothing exists except atoms and empty space; everything else is opinion."

"The void is as real as being."

"All things arise from necessity."

"Atoms are infinite in number and fall eternally through an infinite void."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."