In this expansion of the ideas expressed in her work, "Children's Minds", the author presents a study of the development of the mind from birth to maturity. The author's argument brings into focus certain questions about the relations between thought and emotion: are our emotions bound to remain relatively primitive by comparison with our sophisticated forms of thought, as is often assumed? Or do we have open to us advanced forms of emotional development that are commonly unrealized? She questions the characteristics of the world's great religions, particularly Buddhism, which emerges as relevant in what it has to say about certain forms of personal growth. The author also wrote "A Study of Children's Thinking".