Then I beheld all the work of God, that a man cannot find out the work that is done under the sun: because though a man labour to seek [it] out, yet he shall not find [it;] yea further; though a wise [man] think to know [it], yet shall he not be able to find [it].
Jewish Publication Society of America Version (JPS1917) - Ecclesiastes 8:17 >then I beheld all the work of God, that man cannot find out the work that is done under the sun; because though a man labour to seek it out, yet he shall not find it; yea further, though a wise man think to know it, yet shall he not be able to find it.