The passage of the hearing, then, since this sense organ is of air, ends at the place where the innate breath causes in some animals the pulsation and in others respiration; and that is why we are able to understand what is said and repeat what we have heard, for as was the movement which entered through the sense organ, such again is the movement which is caused by means of the voice, being as it were of one and the same stamp, so that a man can say what he has heard.