And I gave my heart to seek and search out by wisdom concerning all things that are done under heaven: this grievous labor hath God given to the sons of man to be exercised with it.

And I gave my heart to know wisdom, and to know madness and folly: I perceived that this also is vexation of spirit.

Then shall the dust return to the earth as it was: and the spirit shall return to God who gave it.

And moreover, because the preacher was wise, he still taught the people knowledge: yes, he gave good heed, and sought out, and set in order many proverbs.