I have seen all the works that are done under the sun
All things done by the Lord, that were on the earth, and in it, and in the sea; he considered them, and endeavoured to search into the nature of them; and did attain to a very great knowledge of them, so that he could speak of them to the instruction of others; see ( 1 Kings 4:33 ) ; and all that were done by men, by their head, or by their hands; all that were written or wrought by them; all their philosophical works and experiments, and all their mechanic operations; as well as all their good and bad works, in a moral sense; so the Targum,
``I saw all the deeds of the children of men, which are done under the sun in this world;''and, behold, all [is] vanity and vexation of spirit;