Philo Judaeus De Cherubim 58

And there is nothing unnatural in its receiving this impression, for there was a time once when the mind had no conversation with the outward sense, and had no outward sense, being very far removed from all things which were gregarious and in the habit of associating together, and itself resembling those solitary animals which feed by themselves. Accordingly as at that time it was classed by itself it did not touch any body, inasmuch as it had no organ in itself by which to take hold of external objects, but it was blind, and devoid of power, not being such a being as most people call a person when they see any one deprived of his eyes, for such a person is destitute of only one external sense, and has great and abundant vigour in the others.