'Man's' in the Bible

The wise man’s eyes are in his head, but the fool walks in darkness; and yet I know that [in the end] one fate happens to them both.

I have seen that every [effort in] labor and every skill in work comes from man’s rivalry with his neighbor. This too is vanity (futility, false pride) and chasing after the wind.

Who is like the wise man?And who knows the interpretation of a matter?A man’s wisdom illumines his face,And causes his stern face to beam.

Whoever keeps and observes a royal command will experience neither trouble nor misery;For a wise heart will know the proper time and [appropriate] procedure.

All this I have seen while applying my mind to every deed that is done under the sun. There is a time in which one man has exercised power over others to their detriment.

But I say that wisdom is better than strength, though the poor man’s wisdom is despised and his words are not heeded.

A wise man’s heart turns him toward the right [which is the way of blessing], but a fool’s heart turns him toward the left [which is the way of condemnation].

The words of a wise man’s mouth are gracious and win him favor, but the lips of a fool consume him;

then the dust [out of which God made man’s body] will return to the earth as it was, and the spirit will return to God who gave it.