Of the Senses, and of Those Things which are Objects of the Senses,

The Stoics give this definition of sense: Sense is the Apprehension or comprehension of an object by means of an organ of sensation. There are several ways of expressing what sense is; it is either a habit, a faculty, an operation, or an imagination which apprehends by means of an organ of sense — and also the eighth principal thing, from whence the senses originate. The instruments of sense are intelligent exhalations, which from the said commanding part extend unto all the organs of the body. Epicurus, that sense is a faculty, and ............