When I had thus said, Ammonius began: Perhaps it will look like a ridiculous attempt in us, to endeavor to confute Democritus and correct Anaxagoras. Yet we must not allow that humming noise to Anaxagoras’s little motes, for it is neither probable nor necessary. But their tremulous and whirling motion in the sunbeams is oftentimes sufficient to disturb and break a sound. For the air (as hath been already said), being itself the body and substance of sound, if it be quiet and undisturbed, gives a straight, easy, and continuous way to the particles or the motions which make the sound. Thus sounds are best heard in calm still weather; and the contrary is seen in tempestuous weather, as Simonides hath it:— No tearing tempests rattled through the skies, Which hinder sweet discourse from mortal ears. For often the disturbed air hinders the articulateness of a discourse from coming to the ears, though it may convey something of the loudness and length of it. Now the night, simply considered in itself, hath nothing that may disturb the air; though the day hath,—namely the sun, according to the opinion of Anaxagoras.