The ideal teacher guides his students but does not pull them along; he urges them to go forward and does not suppress them; he opens the way but does not take them to the place.
Some are born with knowledge, some derive it from study, and some acquire it only after a painful realization of their ignorance. But the knowledge being possessed, it comes to the same thing. Some study with a natural ease, some from a desire for advantages, and some by strenuous effort. But the achievement being made, it comes to the same thing.
If the people are governed by laws and punishment is used to maintain order, they will try to avoid the punishment but have no sense of shame. If they are governed by virtue and rules of propriety are used to maintain order, they will have a sense of shame and will become good as well.