Fundamental progress has to do with the reinterpretation of basic ideas.

Dogmatism is the anti-Christ of learning.

All practical teachers know that education is a patient process of mastery of details, minute by minute, hour by hour, day by day.

It is the business of future to be dangerous.... The major advances in civilization are processes that all but wreck the societies in which they occur.

You cannot evade quantity. You may fly to poetry and music, and quantity and number will face you in your rhythms and your octaves.

Education which is not modern share the fate of all organic things which are kept too long.

Great dreamers' dreams are never fulfilled, they are always transcended.