1 I said in my heart, "Come now, I will test you with pleasure; enjoy yourself." But behold, this also was vanity. 2 I said of laughter, "It is mad," and of pleasure, "What use is it?" 3 I searched with my heart how to cheer my body with wine--my heart still guiding me with wisdom--and how to lay hold on folly, till I might see what was good for the children of man to do under heaven during the few days of their life. 4 I made great works. I built houses and planted vineyards for myself. 5 I made myself gardens and parks, and planted in them all kinds of fruit trees. 6 I made myself pools from which to water the forest of growing trees. 7 I bought male and female slaves, and had slaves who were born in my house. I had also great possessions of herds and flocks, more than any who had been before me in Jerusalem. 8 I also gathered for myself silver and gold and the treasure of kings and provinces. I got singers, both men and women, and many concubines, the delight of the children of man. 9 So I became great and surpassed all who were before me in Jerusalem. Also my wisdom remained with me. 10 And whatever my eyes desired I did not keep from them. I kept my heart from no pleasure, for my heart found pleasure in all my toil, and this was my reward for all my toil. 11 Then I considered all that my hands had done and the toil I had expended in doing it, and behold, all was vanity and a striving after wind, and there was nothing to be gained under the sun.

(Ecclesiastes 2:1-11 ESV)

6 Better is a handful of quietness than two hands full of toil and a striving after wind. 7 Again, I saw vanity under the sun: 8 one person who has no other, either son or brother, yet there is no end to all his toil, and his eyes are never satisfied with riches, so that he never asks, "For whom am I toiling and depriving myself of pleasure?" This also is vanity and an unhappy business. 9 Two are better than one, because they have a good reward for their toil.

(Ecclesiastes 4:6-9 ESV)

1 There is an evil that I have seen under the sun, and it lies heavy on mankind: 2 a man to whom God gives wealth, possessions, and honor, so that he lacks nothing of all that he desires, yet God does not give him power to enjoy them, but a stranger enjoys them. This is vanity; it is a grievous evil. 3 If a man fathers a hundred children and lives many years, so that the days of his years are many, but his soul is not satisfied with life's good things, and he also has no burial, I say that a stillborn child is better off than he. 4 For it comes in vanity and goes in darkness, and in darkness its name is covered. 5 Moreover, it has not seen the sun or known anything, yet it finds rest rather than he. 6 Even though he should live a thousand years twice over, yet enjoy no good--do not all go to the one place? 7 All the toil of man is for his mouth, yet his appetite is not satisfied.

(Ecclesiastes 6:1-7 ESV)