“He who knows others is wise; he who knows himself is enlightened.”

“He who asserts belief with absolute certainty knows nothing of faith and makes himself into a fool. He who is wise, upon realizing they have done this, recants and searches themselves for further enlightenment.”

“Many's the man/ who thought himself wise/ but what he needed/ he did not know...”

“He Who Knows And Knows That He Knows Is A Wise Man - Follow Him;He Who Knows Not And Knows Not That He Knows Not Is A Fool - Shun Him”

“He who knows not, and knows not that he knows not,is a fool; shun him.He who knows not,and knows that he knows not, is a student; Teach him.He who knows,and knows not that he knows,is asleep; Wake him.He who knows,and knows that he knows,is Wise; Follow him.”

“He who knows other men is discerning;he who knows himself is intelligent.He who overcomes others is strong;he who overcomes himself is mighty.He who is satisfied with his lot is rich;he who goes on acting with energy has a (firm) will. He who does not fail in the requirements of his position, continues long;he who dies and yet does not perish, has longevity.”