And I applied my heart to know wisdom, and to understand the distraction that is upon earth: for there are some that day and night take no sleep with their eyes.
And I proposed in my mind to seek and search out wisely concerning all things that are done under the sun. This painful occupation hath God given to the children of men, to be exercised therein.
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.
There is but one, and he hath not a second, no child, no brother, and yet he ceaseth not to labour, neither are his eyes satisfied with riches, neither doth he reflect, saying: For whom do I labour, and defraud my soul of good things? in this also is vanity, and a grievous vexation.
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,