Ecclesiastes 1:12-15

12I the Preacher was king over Israel in Jerusalem. 13And I gave my heart to seek and search out by wisdom concerning all things that are done under heaven: this grievous labour hath God given to the sons of man to be exercised with it.1 14I have seen all the works that are done under the sun; and, behold, all is vanity and vexation of spirit. 15That which is crooked cannot be made straight: and that which is lacking cannot be numbered.2