“We only think when confronted with a problem.”

“For in spite of itself any movement that thinks and acts in terms of an ‘ism becomes so involved in reaction against other ‘isms that it is unwittingly controlled by them. For it then forms its principles by reaction against them instead of by a comprehensive, constructive survey of actual needs, problems, and possibilities.”

“A problem well put is half solved.”

“We always live at the time we live and not at some other time, and only by extracting at each present time the full meaning of each present experience are we prepared for doing the same thing in the future.”

“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.”

“We do not learn from experience... we learn from reflecting on experience.”

“The only way to abolish war is to make peace seem heroic.”