And I applied my heart to know wisdom, and to know madness and folly: I perceived that this also was a striving after wind.

So I set my mind to know wisdom and madness and folly; I learned that this, too, is a pursuit of the wind.

And I give my heart to know wisdom, and to know madness and folly: I have known that even this is vexation of spirit;

And I applied my heart to the knowledge of wisdom, and to the knowledge of madness and folly: I perceived that this also is a striving after the wind.