Confucius of Kongzi is a greatly revered sage. He is a great philosopher. So all over this site, you will soon get quotes that came from Confucius.
His teachings are not just some things that are in the religious format which might not be grasped but could be purely based on faith only. Confucius’ emphasis was like on Education, Education and Education!
Civil servants of the ancient times had to go to schools and take the so-called “Imperial” examinations.