Common to all these types is the anthropomorphic character of their conception of God. In general, only individuals of exceptional endowments, and exceptionally high-minded communities, rise to any considerable extent above this level. But there is a third stage of religious experience which belongs to all of them, even though it is rarely found in a pure form: I shall call it cosmic religious feeling. It is very difficult to elucidate this feeling to anyone who is entirely without it, especially as there is no anthropomorphic conception of God corresponding to it.

There comes a time when the mind takes a higher plane of knowledge but can never prove how it got there.

If [quantum theory] is correct, it signifies the end of physics as a science.

Lasting harmony with a woman (was) an undertaking in which I twice failed rather disgracefully.

Education is what remains after one has forgotten what one has learned in school.

Democracy, taken in its narrower, purely political, sense, suffers from the fact that those in economic and political power possess the means for molding public opinion to serve their own class interests. The democratic form of government in itself does not automatically solve problems; it offers, however, a useful framework for their solution. Everything depends ultimately on the political and moral qualities of the citizenry.

For me the Jewish religion like all other religions is an incarnation of the most childish superstitions.