Read "Of Those Sentiments Concerning Nature with Which Philosophers Were Delighted" by Plutarch online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
In the sense of Pythagoras, time is that sphere which encompasses the world. Plato says that it is a movable image of eternity, or the interval of the world's motion. Eratosthenes, that it is the solar motion.