The certificate is a spur. "People are not born knowing". All people who come to this world must learn about this world and understand it, so that they can work well and live well.

A certificate of commendation is an encouragement. "No pains, no gains", study hard and do things seriously, and there will be gains. What is harvested now is knowledge, and what is harvested in the future is work, which can be used to dress and eat.