Further in Ecclesiastes
2 verses in Ecclesiastes.
Ecclesiastes 8:17Then 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.
Ecclesiastes 12:12And further, by these, my son, be admonished: of making many books there is no end; and much study is a weariness of the flesh.