New Living Translation
I have thought deeply about all that goes on here under the sun, where people have the power to hurt each other.

American Standard Version
All this have I seen, and applied my heart unto every work that is done under the sun: there is a time wherein one man hath power over another to his hurt.

Berean Study Bible
All this I have seen, applying my mind to every deed that is done under the sun; there is a time when one man lords it over another to his own detriment.

Douay-Rheims Bible
All these things I have considered, and applied my heart to all the works that are done under the sun. Sometimes one man ruleth over another to his own hurt.

English Revised Version
All this have I seen, and applied my heart unto every work that is done under the sun: there is a time wherein one man hath power over another to his hurt.

King James Bible
All this have I seen, and applied my heart unto every work that is done under the sun: there is a time wherein one man ruleth over another to his own hurt.

World English Bible
All this have I seen, and applied my mind to every work that is done under the sun. There is a time in which one man has power over another to his hurt.

Young's Literal Translation
All this I have seen so as to give my heart to every work that hath been done under the sun; a time that man hath ruled over man to his own evil.

Ecclesiastes 8:9 Additional Translations ...