As for the senses and for the organs of sensation, the eyes,
the nostrils, and the tongue, all alike are situated frontwards; the
sense of hearing, and the organ of hearing, the ear, is situated
sideways, on the same horizontal plane with the eyes. The eyes in
man are, in proportion to his size, nearer to one another than in
any other animal.

Of the senses man has the sense of touch more refined than any
animal, and so also, but in less degree, the sense of taste; in the
development of the other senses he is surpassed by a great number of
animals.