The highest goal of moral cultivation is to acquire wisdom. Moral education can't be as ubiquitous as "mercury pouring down the earth"! Appropriate blank space is to set "wisdom".
From primary school to university, teachers and parents will teach us that the more we learn and the richer our thoughts, the smarter we will be. Actually, it's not. What is Hui? The word "Hui" in Oracle Bone Inscriptions has a broom-like coma. Add a heart below, the meaning is very clear. Clean your mind with a broom. Obviously, "wisdom" does not mean that the more things you have in mind, the smarter you are. On the contrary, only by cleaning and emptying your heart regularly can you become wise. Don't care about how much you have in your heart, but know what you have in your heart.
So I think the effectiveness of moral education is ultimately determined by the last link of "demonstration, infiltration, experience, evaluation and introspection". "introspection" is to wipe away the external "dust" and the internal excessive desire.
People can't live without desire. Even a 3-year-old child still has greed, such as infinite expectation for candy. However, people should not have too many desires, especially when desire exceeds ability, especially when virtue does not match. If they can "often wipe", "virtuous Si Qi, introspection evil", they can truly achieve "wisdom and stupidity"-life is just concentration and balance.
The purpose of "introspection" is to guide children to know themselves, make friends with themselves and finally "accept" themselves. We should realize that it takes courage to honestly observe how great we are. The friendship of "being friends with yourself" is based on "knowing all aspects of yourself without prejudice", which is an unconditional friendship. Therefore, when children are "introspective", they will learn to stop, sweep away the dust and toxins from their hearts, so that they will be refreshed, cherish themselves more and no longer regard life as a burden.
"introspection" is also the cultivation of insight, which may make us humble and make us more empathetic to other people's delusions. I will also understand better that "man is a thinking reed" and "man is like an island". If we can't admit that we are in the same boat and need to support each other hand in hand, how can we be compassionate, tolerant, responsible and responsible?
Education "leaving blank" means giving children time and space to "save three provinces a day" and emptying the teacups so as to pour in new tea.