Ecclesiastes 1:13
And I set my mind to seek and explore by wisdom all that is done under heaven. What a heavy burden God has laid on the sons of men, to keep them occupied!

Ecclesiastes 1:14
I have seen all the things that are done under the sun, and have found them all to be futile, a pursuit of the wind.

Ecclesiastes 2:11
Yet when I considered all the works that my hands had accomplished and what I had toiled to achieve, I found everything to be futile, a pursuit of the wind; there was nothing to be gained under the sun.

Ecclesiastes 2:12
Then I turned to consider wisdom and madness and folly; for what more can the king's successor do than what has already been accomplished?

Ecclesiastes 2:17
So I hated life, because the work that is done under the sun was grievous to me. For everything is futile and a pursuit of the wind.

Ecclesiastes 4:4
I saw that all labor and success spring from a man's envy of his neighbor. This too is futile and a pursuit of the wind.

Ecclesiastes 4:6
Better one handful with tranquility than two handfuls with toil and pursuit of the wind.

Ecclesiastes 6:9
Better what the eye can see than the wandering of desire. This too is futile and a pursuit of the wind.

Ecclesiastes 7:25
I directed my mind to understand, to explore, to search out wisdom and explanations, and to understand the stupidity of wickedness and the folly of madness.

Ecclesiastes 9:3
This is an evil in everything that is done under the sun: There is one fate for everyone. Furthermore, the hearts of men are full of evil and madness while they are alive, and afterward they join the dead.