I spoke in my heart, saying, Behold, I have attained, and acquired wisdom beyond all who were before me in Jerusalem. Also I applied my heart to know wisdom and knowledge.

For in the abundance of wisdom is abundance of knowledge; and he that increases knowledge will increase sorrow.

behold, I have done according to your word: behold, I have given you an understanding and wise heart: there has not been [anyone] like you before you, and after you there shall not arise one like you.

I said in my heart, Come now, I will test you with mirth, therefore enjoy pleasure. And behold, this is also vanity.

Vanity of vanities, said the Preacher, vanity of vanities; all is vanity.

I beheld all the works that were done under the sun; and indeed, all is vanity and grasping for the wind.