There are two important things to be considered by guardians in the development of the youth. One is that very often guardians think this is the same child who used to be a baby and a little child running about, and they go on treating the youth in the same way as they have done before. They underestimate his comprehension, his maturity of mind, the development of his spirit; and in this way very often they delude themselves. And then there are others who take the opposite course. When the youth begins to say things that show a greater intelligence, they believe that they can tell him anything and everything, without waiting for the appropriate time to mention a certain thing, a certain idea. And therefore mistakes may be made both by considering a youth to be an experienced person, and also by considering him to be still a child that does not know anything.