Confucius, the greated thinker and teacher in Chinese history. He presents himself as a "transmitter who invented nothing" and put the greatest emphasis on the importance of study

Confucius (551 BC – 479 BC) :

"Do not be concerned about others not appreciating you.

Be concerned about your not appriciating others."

子曰: 不患人之不己知，患不知人也。