Diogenes Laertius cannot really be described as a peer of Pythagoras, as Pythagoras lived in the 6th century BC, long before anything Roman might be considered

Diogenes Laertius cannot really be described as a peer of Pythagoras, as Pythagoras lived in the 6th century BC, long before anything Roman might be considered a peer to anything Greek, and Diogenes Laertius in the 3rd century AD.