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.

Since a democratic society repudiates the principle of external authority, it must find a substitute in voluntary disposition and interest; these can be created only by education.

Consensus demands communication.

We are a people of many races, many faiths, creeds, and religions. I do not think that the men who made the Constitution forbade the establishment of a State church because they were opposed to religion. They knew that the introduction of religious differences into American life would undermine the democratic foundations of this country. What holds for adults holds even more for children, sensitive and conscious of differences. I certainly hope that the Board of Education will think very, very seriously before it introduces this division and antagonism in our public schools.

As a matter of fact, a modern society is many societies more or less loosely connected. Each household with its immediate extension of friends makes a society; the village or street group of playmates is a community; each business group, each club, is another.

The demand for liberty is a demand for power, either for possession of powers of action not already possessed or for retention and expansion of powers already possessed.

To be a recipient of a communication is to have an enlarged and changed experience.