Confucius

"He who learns but does not think is lost, he who thinks but does not learn
is in danger. "

"One who knows and knows he knows is a wise man,
Follow Him."

"One who knows and knows not he knows is asleep,
Awaken him."

"One who knows not and knows he knows not is a child,
Teach him."

"One who knows not and knows not he knows not is a Fool,
Avoid him."

"He who knows he is humble-is not!"

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