A knowledge of the existence of something we cannot penetrate, of the manifestations of the profoundest reason and the most radiant beauty - it is this knowledge and this emotion that constitute the truly religious attitude; in this sense, and in this alone, I am a deeply religious man.
I am so much a Unitarian as this: that I believe the human mind can admit but one God, and that every effort to pay religious homage to more than one being goes to take away all right ideas.
Men are not flattered by being shown that there has been a difference of purpose between the Almighty and them. To deny it, however, in this case, is to deny that there is a God governing the world. It is a truth which I thought needed to be told; and as whatever of humilation there is in it, falls most directly on myself, I thought others might afford for me to tell it.
And the founder of Christianity made no secret indeed of his estimation of the Jewish people. When He found it necessary, He drove those enemies of the human race out of the Temple of God.
The contemplation of this world beckoned as a liberation (...)The road to this paradise was not as comfortable and alluring as the road to the religious paradise; but it has shown itself reliable, and I have never regretted having chosen it.
The fact that people have religious experiences is interesting from the psychological point of view, but it does not in any way imply that there is such a thing as religious knowledge...Unless he can formulate this 'knowledge' in propositions that are empirically verifiable, we may be sure that he is deceiving himself.
Not until my fourteenth or fifteenth year did I begin to come across the word 'Jew,' with any frequency, partly in connection with political discussions.... For the Jew was still characterized for me by nothing but his religion, and therefore, on grounds of human tolerance, I maintained my rejection of religious attacks in this case as in others. Consequently, the tone, particularly that of the Viennese anti-Semitic press, seemed to me unworthy of the cultural tradition of a great nation.
In the matter of religion, people eagerly fasten their eyes on the difference between their own creed and yours; whilst the charm of the study is in finding the agreements and identities in all the religions of humanity.
Are you unselfish? That is the question. If you are, you will be perfect without reading a single religious book, without going into a single church or temple.
Our plan will not favor religious institutions over nonreligious institutions. As president, I'm interested in what is constitutional and I'm interested in what works.
But if out of smugness, or even cowardice, this battle is not fought to its end, then take a look at the peoples five hundred years from now. I think you will find but few images of God, unless you want to profane the Almighty.
Our two nations have a lot in common, when you think about it. We were both founded by immigrants escaping religious persecution in other lands. We both have built vibrant democracies. Both our countries are founded on certain basic beliefs, that there is an Almighty God who watches over the affairs of men and values every life. These ties have made us natural allies, and these ties will never be broken.
The longing to behold this pre-established harmony [of phenomena and theoretical principles] is the source of the inexhaustible patience and perseverance with which Planck has devoted himself ... The state of mind which enables a man to do work of this kind is akin to that of the religious worshiper or the lover; the daily effort comes from no deliberate intention or program, but straight from the heart.