To avoid a split between what men consciously know because they are aware of having learned it by a specific job of learning, and what they unconsciously know because they have absorbed it in the formation of their characters by intercourse with others, becomes an increasingly delicate task with every development of special schooling.

Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes. Genuine ignorance is profitable because it is likely to be accompanied by humility, curiosity, and open-mindedness; whereas ability to repeat catch-phrases, can't terms, familiar propositions, gives the conceit of learning and coats the mind with varnish waterproof to new ideas.

I believe that education is the fundamental method of social progress and reform.

Inference is always an invasion of the unknown, a leap from the known.

a problem well put is half solved.

Science is a systematic means of gaining reliable knowledge.

As a child lives today, he will live tomorrow.