New King James Version (NKJV)
Ecclesiastes 1
14 I have seen all the works that are done under the sun; and indeed, all is vanity and grasping for the wind.
15 What is crooked cannot be made straight, And what is lacking cannot be numbered.
16 I communed with my heart, saying, "Look, I have attained greatness, and have gained more wisdom than all who were before me in Jerusalem. My heart has understood great wisdom and knowledge."
17 And I set my heart to know wisdom and to know madness and folly. I perceived that this also is grasping for the wind.
18 For in much wisdom is much grief, And he who increases knowledge increases sorrow.
Ecclesiastes 2
1 I said in my heart, "Come now, I will test you with mirth; therefore enjoy pleasure"; but surely, this also was vanity.
2 I said of laughter--"Madness!"; and of mirth, "What does it accomplish?"
3 I searched in my heart how to gratify my flesh with wine, while guiding my heart with wisdom, and how to lay hold on folly, till I might see what was good for the sons of men to do under heaven all the days of their lives.
4 I made my works great, I built myself houses, and planted myself vineyards.
5 I made myself gardens and orchards, and I planted all kinds of fruit trees in them.
6 I made myself water pools from which to water the growing trees of the grove.