Ecclesiastes 2:3

2:3 I thought deeply about the effects of indulging myself with wine

(all the while my mind was guiding me with wisdom)

and the effects of behaving foolishly,

so that I might discover what is profitable

for people to do on earth during the few days of their lives.

Ecclesiastes 6:3

6:3 Even if a man fathers a hundred children and lives many years –

even if he lives a long, long time, but cannot enjoy his prosperity –

even if he were to live forever –

I would say, “A stillborn child is better off than he is!”

Ecclesiastes 9:9

9:9 Enjoy life with your beloved wife during all the days of your fleeting life

that God has given you on earth during all your fleeting days;

for that is your reward in life and in your burdensome work on earth.