Ecclesiastes 2:13

Then I looked at all the works that my hands had worked, and at the labor that I had labored to do; and behold, all was vanity and a chasing after wind, and there was no profit under the sun.

I turned myself to consider wisdom, madness, and folly: for what can the king's successor do? Just that which has been done long ago.

The wise man's eyes are in his head, and the fool walks in darkness--and yet I perceived that one event happens to them all.

Then I said in my heart, "As it happens to the fool, so will it happen even to me; and why was I then more wise?" Then I said in my heart that this also is vanity.