But then comes the question of how to develop a child's thought. The thought of a child cannot be developed by getting it to think on love, or on kindness, or goodness, or anything like that. As soon as the child is given a thought to hold on to it feels uncomfortable, uneasy, just as a mule would feel the burden on its back. The best way is to find out what it is thinking of and to strengthen that thought, if the thought is desirable.