Child psychology and animal psychology are of relatively slight importance, as compared with the sciences which deal with the corresponding physiological problems of ontogeny and phylogeny.

Summary

This quote suggests that child psychology and animal psychology are not as significant as the scientific fields focused on the physiological development and evolutionary history of living organisms. It implies that understanding the biological processes and evolutionary progression is more crucial than studying the psychological behavior of children and animals. This viewpoint may stem from the belief that physiological research provides a more solid foundation for understanding the complexities of life, compared to studying the psychological aspects.

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