Mbh 14.22.3

"'"The Brahmana said, 'Not knowing the qualities (of any object) is ignorance (of that object); while knowledge of the qualities is (called) knowledge (of the object which possesses those qualities). These seven never succeed in apprehending or knowing the qualities of one another. The tongue, the eye, the ear too, the skin, the mind, and the understanding, do not succeed in apprehending smells. It is the nose alone that apprehends them. The nose, the tongue, the ear also, the skin, the mind, and the understanding, never succeed in apprehending colours. It is the eye alone that apprehends them. The nose, the tongue, the eye too, the ear, the understanding, and the mind, never succeed in apprehending sensations of touch. It is the skin alone that apprehends them. The nose, the tongue, the eye, the skin, the mind, and the understanding, never succeed in apprehending sounds. It is the ear alone that apprehends them. The nose, the tongue, the eye, the skin, the ear, and the understanding never succeed in apprehending doubt. It is the mind that apprehends it. The nose, the tongue, the eye, the skin, the ear, and the mind, never succeed in apprehending determination (certainty in respect of knowledge). It is the understanding alone that apprehends it. In this connection, is cited, O beautiful lady, this ancient narrative of a discourse between the senses and the mind.'