Some of the finest moral intuitions come to quite humble people. The visiting of lofty ideas doesn't depend on formal schooling.

Systems, scientific or philosophic, come and go. Each method of limited understanding is at length exhausted. In its prime each system is a triumphant success: in its decay it is an obstructive nuisance.

Science repudiates philosophy. In other words, it has never cared to justify its truth or explain its meaning.

When success turns a man's head he faces failure

The science of pure mathematics, in its modern developments, may claim to be the most original creation of the human spirit.

In this modern world, the celibacy of the medieval learned class has been replaced by a celibacy of the intellect which is divorced from the concrete contemplation of the complete facts.

From the very beginning of his education, the child should experience the joy of discovery.