'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 one fate befalls them both.

All a man’s labor is for his mouth and yet the appetite is not satisfied.

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

For there is a proper time and procedure for every delight, though a man’s trouble is heavy upon him.

A wise man’s heart directs him toward the right, but the foolish man’s heart directs him toward the left.

Indeed, if a man should live many years, let him rejoice in them all, and let him remember the days of darkness, for they will be many. Everything that is to come will be futility.