Philolaus (; ; c. 470 – c. 385 BCE) was a Greek
Pythagorean and
Presocratic philosopher. He argued that at the foundation of everything is the part played by the limiting and limitless, which combine together in a harmony. He is also credited with originating the theory that the
Earth was not the center of the
universe. According to
August Böckh (1819), who cites
Nicomachus,
Philolaus was the successor of
Pythagoras.