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

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

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

Darby Bible Translation
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.

Douay-Rheims Bible
And I have given my heart to know prudence, and learning, and errors, and folly: and I have perceived that in these also there was labour, and vexation of spirit,

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

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