And silly women, who dye their grey hair and anoint their locks, grow speedily greyer by the perfumes they use, which are of a drying nature. Wherefore also those that anoint themselves become drier, and the dryness makes them greyer. For if greyness is an exsiccation of the hair, or defect of heat, the dryness drinking up the moisture which is the natural nutriment of the hair, and making it grey, how can we any longer retain a liking for unguents, through which ladies, in trying to escape grey hair, become grey? And as dogs with fine sense of smell track the wild beasts by the scent, so also the temperate scent the licentious by the superfluous perfume of unguents.