When, instead of merely associating some act with some situation in the animal way, we think the situation out, we have a set of particular feelings of its elements.

Amongst the minds of animals that of man leads, not as a demigod from another planet, but as a king from the same race.

Just as the science and art of agriculture depend upon chemistry and botany, so the art of education depends upon physiology and psychology.

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.

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.

This growth in the number, speed of formation, permanence, delicacy and complexity of associations possible for an animal reaches its acme in the case of man.