In laying hands upon the sacred ark of absolute permanency, in treating the forms that had been regarded as types of fixity and perfection as originating and passing away, the Origin of Species introduced a mode of thinking that in the end was bound to transform the logic of knowledge, and hence the treatment of morals, politics, and religion.

As a society becomes more enlightened, it realizes that it is responsible not to transmit and conserve the whole of its existing achievements, but only such as make for a better future society. The school is its chief agency for the accomplishment of this end.

One can think effectively only when one is willing to endure suspense and to undergo the trouble of searching.

What nutrition and reproduction are to physiological life, education is to social life.

Traveling is a constant arriving, while arrival that precludes further traveling is most easily attained by going to sleep or dying.

The deepest urge in human nature is the desire to feel important.

All genuine education comes about through experience.