“those who truly know, knows those who don't, will learn if they ask”
“Those who don't know must learn from those who do.”
“there are three kinds of people in the world: those who don't know and don't know they don't know; those who don't know and do know they don't know; and those who know and know how much they still don't know.”
“...Those who know don't talk and those who talk don't know.”
“Those who worship don't know, and those who know don't worship.”
“Those who know don't tell and those who tell don't know.”