New American Standard Bible (NASB)
Ecclesiastes 1
14 I have seen all the works which have been done under the sun, and behold, all is vanity and striving after wind.
15 What is crooked cannot be straightened and what is lacking cannot be counted.
16 I said to myself, "Behold, I have magnified and increased wisdom more than all who were over Jerusalem before me; and my mind has observed a wealth of wisdom and knowledge."
17 And I set my mind to know wisdom and to know madness and folly; I realized that this also is striving after wind.
18 Because in much wisdom there is much grief, and increasing knowledge results in increasing pain.
Ecclesiastes 2
1 I said to myself, "Come now, I will test you with pleasure. So enjoy yourself." And behold, it too was futility.
2 I said of laughter, "It is madness," and of pleasure, "What does it accomplish?"
3 I explored with my mind how to stimulate my body with wine while my mind was guiding me wisely, and how to take hold of folly, until I could see what good there is for the sons of men to do under heaven the few years of their lives.
4 I enlarged my works: I built houses for myself, I planted vineyards for myself;
5 I made gardens and parks for myself and I planted in them all kinds of fruit trees;
6 I made ponds of water for myself from which to irrigate a forest of growing trees.