““The lesson for progressive education is that it requires in an urgent degree, a degree more pressing than was incumbent upon former innovators, a philosophy of education based upon a philosophy of experience. I remarked incidentally that the philosophy in question is, to paraphrase the saying of Lincoln about democracy, one of education of, by and for experience. No one of these words, of, by, or for, names anything which is self-evident. Each of them is a challenge to discover and put into operation a principle of order and organization which follows from understanding what educative experience signifies.””