2:23 For all day long his work produces pain and frustration,
and even at night his mind cannot relax!
This also is futile!
5:20 For he does not think much about the fleeting days of his life
because God keeps him preoccupied with the joy he derives from his activity.
6:7 All of man’s labor is for nothing more than to fill his stomach –
yet his appetite is never satisfied!
8:1 Who is a wise person? Who knows the solution to a problem?
A person’s wisdom brightens his appearance, and softens his harsh countenance.