This explains, further, why excesses of the other sensible objects, ie excess of colour, sound, and smell, destroys not the animal but only the organs of the sense (except incidentally, as when the sound is accompanied by an impact or shock, or where through the objects of sight or of smell certain other things are set in motion, which destroy by contact flavour also destroys only in so far as it is at the same time capable of contact), whereas excess in tangible qualities, eg heat, cold, or hardness, destroys the animal itself.