Old ideas give way slowly; for they are more than abstract logical forms and categories. They are habits, predispositions, deeply ingrained attitudes of aversion and preference.

There is no greater egoism than that of learning when it is treated simply as a mark of personal distinction to be held and cherished for its own sake. ... [K]knowledge is a possession held in trust for the furthering of the well-being of all

Nature as a whole is a progressive realization of purpose strictly comparable to the realization of purpose in any single plant or animal.

The experience has to be formulated in order to be communicated.

All genuine education comes about through experience.

The struggle for democracy has to be maintained on as many fronts as culture has aspects: political, economic, international, educational, scientific and artistic, religious.

Like the soil, mind is fertilized while it lies fallow, until a new burst of bloom ensues.