I the Preacher was king over Israel in Jerusalem.13
And I gave my heart to seek and search out by wisdom concerning all things that are done under heaven: this soretravail hath Godgiven to the sons of man to be exercised therewith.
I have seen all the works that are done under the sun; and, behold, all is vanity and vexation of spirit.15
That which is crookedcannot be made straight : and that which is wantingacannot be numbered .
I communed with mine own heart,saying , Lo, I am come to great estate , and have gotten more wisdom than all they that have been before me in Jerusalem: yea, my heart had greatexperience of wisdom and knowledge.17
And I gave my heart to knowwisdom, and to knowmadness and folly: I perceived that this also is vexation of spirit.18
For in muchwisdom is muchgrief: and he that increasethknowledgeincreasethsorrow.