In psychology, no man knows very much. The inner forces of human life are still largely hidden from us.

Since Freud's genius made it alive, psychology has zone far; but it is still a new science, mapping out the coast of an unknown continent. Fifty years hence, psychologists will very likely smile at our ignorance of today.

Since I left education and took up child psychology, I have had all sorts of children to deal with--incendiaries, thieves, liars, bed-wetters, and bad-tempered children. Years of intensive work in child training has convinced me that I know comparatively little of the forces that motivate life. I am convinced, however, that parents who have had to deal with only their own children know much less than I do.

It is because I believe that a difficult child is nearly always made difficult by wrong treatment at home that I dare address parents.

What is the province of psychology? I suggest the word curing. But what kind of curing? I do not want to be cured of my habit of choosing the colors orange and black; nor do I want to be cured of smoking; nor of my liking for a bottle of beer. No teacher has the right to cure a child of making noises on a drum. The only curing that should be practiced is the curing of unhappiness.

The difficult child is the child who is unhappy. He is at war with himself; and in consequence, he is at war with the world.

The difficult adult is in the same boat. No happy man ever disturbed a meeting, or preached a war, or lynched a Negro. No happy woman ever nagged her husband or her children. No

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