[148] for we are pleased either when we behold the varieties of colours and forms, both in things inanimate and in those endowed with vitality, or when we hear melodious sounds, or again, we are delighted by the exercise of the faculty of taste in the things which relate to eating and drinking, or by that of the sense of smell in fragrant flavours and vapours, or in accordance with our faculty of touch when conversant with soft, or hot, or smooth things.