The misconception which has haunted philosophic literature throughout the centuries is the notion of 'independent existence.' There is no such mode of existence; every entity is to be understood in terms of the way it is interwoven with the rest of the universe.

I am also greatly indebted to Bergson, William James, and John Dewey. One of my preoccupations has been to rescue their type of thought from the charge of anti-intellectualism, which rightly or wrongly has been associated with it.

Not ignorance, but ignorance of ignorance, is the death of knowledge.

That knowledge which adds greatness to character is knowledge so handled as to transform every phase of immediate experience.

Problems are only opportunities in disquise.

The only use of knowledge of the past is to equip us for the present.

True courage is not the brutal force of vulgar heroes, but the firm resolve of virtue and reason.