Every thinker puts some portion of an apparently stable world in peril.

Without initiation into the scientific spirit one is not in possession of the best tools which humanity has so far devised for effectively directed reflection. One in that case not merely conducts inquiry and learning without the use of the best instruments, but fails to understand the full meaning of knowledge.

By reading the characteristic features of any man's castles in the air you can make a shrewd guess as to his underlying desires which are frustrated.

Only in education, never in the life of farmer, sailor, merchant, physician, or laboratory experimenter, does knowledge mean primarily a store of information aloof from doing.

What the best and wisest parent wants for his own child, that must the community want for all of its children.

As long as politics is the shadow cast on society by big business, the attenuation of the shadow will not change the substance.

I believe that the community's duty to education is, therefore, its paramount moral duty. By law and punishment, by social agitation and discussion, society can regulate and form itself in a more or less haphazard and chance way. But through education society can formulate its own purposes, can organize its own means and resources, and thus shape itself with definiteness and economy in the direction in which it wishes to move.