I like these quotes!
“He who knows does not speak.
He who speaks does not know.”
He who knows is being observant. He is watching life from an objective standpoint, rather than experiencing it and missing out on a few key elements. He is not being caught up in his own emotions and subjectivity, because their subjective world is transient and does not hold true for everyone.
“He who knows others is wise;
He who know himself is enlightened.”
He who knows himself realizes that what he is observing is his own self. Every and all things are him. He has merged his subjective and objective awareness into one.
Whereas he who knows others is not not aware of the fact that he is God. He views life as detached from himself, when there is not detachment.