"The processes of teaching the child that everything cannot be as he wills it are apt to be painful both to him and to his teacher"

This quote by Anne Sullivan talks to the difficulty of mentor kids that they can not constantly get what they want. It implies that teaching kids to accept disappointment and to comprehend that life is not constantly reasonable can be a difficult process for both the child and the instructor. It is likely that the child will experience aggravation and unhappiness when they are unable to get what they want, and the teacher may feel powerless in attempting to assist the child understand and accept the situation. It is very important for children to find out that life is not always easy which they can not always get what they desire, but it can be a difficult lesson to find out.