Human education is concerned with certain changes in the intellects, characters and behavior of men, its problems being roughly included under these four topics: Aims, materials, means and methods.

The un-conscious distortion of the facts is almost harmless compared to the unconscious neglect of an animal's mental life until it verges on the unusual and marvelous.

He who learns and runs away, lives to learn another day.

Whatever exists at all exists in some amount. To know it thoroughly involves knowing its quantity as well as its quality.

From the lowest animals of which we can affirm intelligence up to man this type of intellect is found.

On the whole, the psychological work of the last quarter of the nineteenth century emphasized the study of consciousness to the neglect of the total life of intellect and character

Psychology helps to measure the probability that an aim is attainable.