Ecclesiastes 6:7-12

[7] All the toil of man is for his mouth, yet his appetite is not satisfied.
[8] For what advantage has the wise man over the fool? And what does the poor man have who knows how to conduct himself before the living?
[9] Better is the sight of the eyes than the wandering of desire; this also is vanity and a striving after wind.
[10] Whatever has come to be has already been named, and it is known what man is, and that he is not able to dispute with one stronger than he. 
[11] The more words, the more vanity, and what is man the better?
[12] For who knows what is good for man while he lives the few days of his vain life, which he passes like a shadow? For who can tell man what will be after him under the sun?