Metrodorus says that all the fixed stars derive their light from the
sun. Heraclitus and the Stoics, that earthly exhalations are those
by which the stars are nourished. Aristotle, that the heavenly bodies
require no nutriment, for they being eternal cannot be obnoxious to
corruption. Plato and the Stoics, that the whole world and the stars are
fed by the same things.