What do you mean that human beings have not yet learned three points, and seven points of official prestige are vivid?

These two sentences mean that you must learn to be a man before you become an official. Used to satirize those stupid officials and scum officials who rely on background, power and money to trade and bribe officials to take up leadership positions.

They have no personality, no knowledge, no skills, incompetence but full of official prestige.

They curry favor with their superiors and masters, just like good grandchildren; They only care about money and sex for their subordinates, ignoring fairness and justice and abusing their power; They are arrogant to the people, put themselves above the people, and have no sense of public servants.