This truth is best understood by those who have been impoverished by their foolishness, and those who have lived among the foolish, due to circumstances beyond their control. This truth has been expressed many times over in contemporary art and song.
Proverbs 19:8 and Proverbs 19:20
"No man can reveal to you aught but that which already lies half asleep in the dawning of your knowledge. The teacher who walks in the shadow of the temple, among his followers, gives not of his wisdom, but rather of his faith and lovingness. If he is indeed wise, he does not bid you enter the house of his wisdom, but rather leads you to the threshold of your own mind.
The astronomer may speak to you of his understanding of space, but he cannot give you his understanding. The musician may sing to you of the rythm which is in all space, but he cannot give you the ear which arrests the rythm or the voice that echoes it. And he who is versed in the science of numbers can tell of the regions of weight and measure, but he cannot conduct you thither.
For the vision of one man lends not its wings to another man. And even as each one of you stands alone in God's knowledge, so must each one of you be alone in his knowledge of God and in his understanding of the earth."
The Prophet - 1923