The only freedom that is of enduring importance is the freedom of intelligence, that is to say, freedom of observation and of judgment, exercised in behalf of purposes that are intrinsically worth while. The commonest mistake made about freedom is, I think, to identify it with freedom of movement, or, with the external or physical side of activity.

Confidence is directness and courage in meeting the facts of life.

Every great advance in science has issued from a new audacity of imagination. What are now working conceptions, employed as a matter of course because they have withstood the tests of experiment and have emerged triumphant, were once speculative hypotheses.

The reactionaries are in possession of force, in not only the army and police, but in the press and the schools

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

We can have facts without thinking but we cannot have thinking without facts.

The development occurs through reciprocal give-and-take, the teacher taking but not being afraid also to give.