It means to stop leaning on your own understanding and to lay aside your old concepts, humble yourself for knowledge puffeth up, become as a child know nothing. Be swift to hear and slow to speak, knowing that you are never to wise to learn and that you can never know everything.
"Be of the same mind one toward another. Mind not high things, but condescend to men of low estate. Be not wise in your own conceits."
"A wise man will hear, and will increase learning; and a man of understanding shall attain unto wise counsels:"
"Give instruction to a wise man, and he will be yet wiser: teach a just man, and he will increase in learning."