The reason of the close concurrence between the individuals progress and that of the race appears, therefore, when we remember the dependence of each upon the other.

Plato stands for the union of truth and goodness in the supreme idea of God.

The fact that tradition hinders the individual savage from thinking logically by no means proves that he cannot think logically.

Like all science, psychology is knowledge; and like science again, it is knowledge of a definite thing, the mind.

Feeling is the consciousness of the resulting conditions - of success, failure, equilibrium, compromise or balance, in this continuous rivalry of ideas.

Heredity provides for the modification of its own machinery.

The reason of the close concurrence between the individuals progress and that of the race appears, therefore, when we remember the dependence of each upon the other.