Past is dead Future is uncertain; Present is all you have, So eat, drink and live merry.

I have repeatedly said that in my opinion the idea of a personal God is a childlike one.

The scientific theorist is not to be envied. For Nature, or more precisely experiment, is an exorable and not very friendly judge of his work. It never says "yes" to a theory. In the most favorable cases it says "Maybe," and in the great majority of cases simply "No." If an experiment agrees with a theory it means for the latter "Maybe," and if it does not agree it means "No." Probably every theory will some day experience its "No" - most theories, soon after conception.

Every reminiscence is colored by the way things are today, and therefore by a delusive point of view.

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.

Do not grow old, no matter how long you live. Never cease to stand like curious children before the Great Mystery into which we were born.

The problems that exist in this world can not be solved by the level of thinking that created them.