The Preacher says there is an evil he has seen under the sun that weighs heavily on people: someone to whom God gives riches, wealth and honor, so that he lacks nothing he desires, yet God does not give him power to enjoy them, and a stranger enjoys them. This is vanity and a grievous evil.
He then imagines a man who fathers a hundred children and lives many years, yet whose soul is not satisfied with good things and who does not even have a burial. He says a stillborn child is better off than he: it comes in vanity and goes in darkness, its name is covered in darkness, it never saw the sun or knew anything, and it has more rest than that man. Even if he lived two thousand years without seeing good, all go to the same place.
Next he observes that all human toil is for the mouth, and yet the appetite is not satisfied. He asks what advantage the wise have over the fool, and what advantage the poor man has who knows how to conduct himself. Better is the sight of the eyes than the wandering of desire, and that too is vanity.
Finally he says that whatever exists has already been named, and it is known what humanity is: no one can contend with one stronger. Many words increase vanity. He asks who knows what is good for a person in this brief life, which passes like a shadow, and who can tell him what will come after him under the sun.