"Knowing"

"The wisdom of this world is foolishness. "If any man think that he knoweth anything, he knoweth nothing yet as he ought to know." 

1 Corinthians 8:2. We have nothing except that which comes from God; and the Holy Spirit is given to us, "that we might know the things that are freely given to us of God" (1 Corinthians 2:12); therefore it follows that without the Holy Spirit we cannot really know anything." 

E.J. Waggoner