“The God Spinoza revered is my God, too: I meet Him everyday in the harmonious laws which govern the universe.”

Albert Einstein, in response to the telegrammed question of New York's Rabbi Herbert S. Goldstein in (24 April 1929) ; he later expanded on his comments about Spinoza's and his own ideas on religion elsewhere : "I can understand your aversion to the use of the term "religion" to describe an emotional and psychological attitude which shows itself most clearly in Spinoza … I have not found a better expression than "religious" for the trust in the rational nature of reality that is, at least to a certain extent, accessible to human reason." — as quoted in Einstein : Science and Religion by Arnold V. Lesikar
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We The Living (1936)
Source: We The Living Last Page

Quoted in "Stephen Hawking prepares for weightless flight", New Scientist (26 April 2007) http://www.newscientist.com/article/dn11722-stephen-hawking-prepares-for-weightless-flight.html

Source: Rudimental Divine Science, p. 1

Power Of The Plus Factor (1987)

"On My Friendly Critics"
Soliloquies in England and Later Soliloquies (1922)
Source: Soliloquies in England & Later Soliloquies

George Santayana, in "On My Friendly Critics", in Soliloquies in England (1922)

Source: Attributed in posthumous publications, Einstein and the Poet (1983), p. 132
Variant transcription from "Death of a Genius" in Life Magazine: "I cannot accept any concept of God based on the fear of life or the fear of death, or blind faith. I cannot prove to you that there is no personal God, but if I were to speak of him I would be a liar."
Context: About God, I cannot accept any concept based on the authority of the Church. As long as I can remember, I have resented mass indoctrination. I do not believe in the fear of life, in the fear of death, in blind faith. I cannot prove to you that there is no personal God, but if I were to speak of him, I would be a liar. I do not believe in the God of theology who rewards good and punishes evil. My God created laws that take care of that. His universe is not ruled by wishful thinking, but by immutable laws.