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.
Read Chapter 2
Ambrose of Milan
Let us make note of the fact that the body of a person is constructed like the world itself. As the sky is preeminent over air, earth and sea, which serve as members of the world, so we observe that the head has a position above the other members of our body. In the same way, the sky stands supreme among the other elements, just as a citadel amid the other outposts in a city’s defense. In this citadel dwells what might be called regal Wisdom, as stated in the words of the prophet: “The eyes of a wise man are in his head.” That is to say, this position is better protected than the others and from it strength and prevision are brought to bear on all the rest. . ...
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.” ...
Darkness and ignorance. He knows not whither he is going, Proverbs iv. 19., and xvii. 24. Wisdom is to be preferred before wealth (Calmet)
Consideration directs a person to do good.
Alike. Thus world lings speak, who reflect not on the life to come. (Worthington)
In many respects all resemble one another, though their sentence be very different. (Menochius) ...