The wise man's eyes are in his head; but the fool walks in darkness: and I myself perceived also that one fate happens to them all.
All Commentaries on Ecclesiastes 2:14 Go To Ecclesiastes 2
Didymus the Blind
AD 398
If we think about “eyes” in the visible sense, then (one can say) that both the foolish and the wise have eyes in their head. The wise [person], insofar as he is wise, turns upwards to Christ, his head. Thus it is written: “Christ is the head of every man.” The head of the wise is the mind; therefore it is written: “But we have the mind of Christ.”