(c. 480 B.C. - c. 420 B.C.)
Greek philosopher who is as the originator of the idea of atomism, regarding matter as being made up of atoms, which were the smallest pieces into which any substance could be divided.
Science Quotes by Leucippus (1 quote)
Nothing occurs at random, but everything for a reason and by necessity.
Aetius 1.25.4. In G. S. Kirk, J. E. Raven and M. Schofield (eds.), The Presocratic Philosophers (1983), 420.