1:13 I decided to carefully and thoroughly examine
all that has been accomplished on earth.
I concluded: God has given people a burdensome task
that keeps them occupied.
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.
10:14 yet a fool keeps on babbling.
No one knows what will happen;
who can tell him what will happen in the future?