It’s probably better to let Albert Einstein “speak” for himself:
“It was, of course, a lie what you read about my religious convictions, a lie which is being systematically repeated. I do not believe in a personal God and I have never denied this but have expressed it clearly. If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it.”
– Albert Einstein, letter to an atheist (1954), quoted in Albert Einstein: The Human Side, edited by Helen Dukas & Banesh Hoffman.
“The word god is for me nothing more than the expression and product of human weaknesses, the Bible a collection of honourable, but still primitive legends which are nevertheless pretty childish. No interpretation no matter how subtle can (for me) change this.”
Letter to philosopher Eric Gutkind, January 3, 1954
“During the youthful period of mankind’s spiritual evolution, human fantasy created gods in man’s own image who, by the operations of their will were supposed to determine, or at any rate influence, the phenomenal world.”
– Albert Einstein, quoted in: 2000 Years of Disbelief, James Haught.
“I have repeatedly said that in my opinion the idea of a personal God is a childlike one. You may call me an agnostic, but I do not share the crusading spirit of the professional atheist whose fervor is mostly due to a painful act of liberation from the fetters of religious indoctrination received in youth. I prefer an attitude of humility corresponding to the weakness of our intellectual understanding of nature and of our own being.”
– Albert Einstein to Guy H. Raner Jr., Sept. 28, 1949, quoted by Michael R. Gilmore in Skeptic magazine, Vol. 5, No. 2.
“It seems to me that the idea of a personal God is an anthropological concept which I cannot take seriously. I also cannot imagine some will or goal outside the human sphere…. Science has been charged with undermining morality, but the charge is unjust. A man’s ethical behavior should be based effectually on sympathy, education, and social ties and needs; no religious basis is necessary. Man would indeed be in a poor way if he had to be restrained by fear of punishment and hope of reward after death.”
– Albert Einstein, “Religion and Science,” New York Times Magazine, November 9, 1930.
“I cannot conceive of a personal God who would directly influence the actions of individuals, or would directly sit in judgment on creatures of his own creation. I cannot do this in spite of the fact that mechanistic causality has, to a certain extent, been placed in doubt by modern science. My religiosity consists in a humble admiration of the infinitely superior spirit that reveals itself in the little that we, with our weak and transitory understanding, can comprehend of reality. Morality is of the highest importance — but for us, not for God.”
– Albert Einstein, from Albert Einstein: The Human Side, edited by Helen Dukas & Banesh Hoffman.
Of course: The personal opinion of anyone is not evidence for (or against) the hypothetical existence of any of the hundreds of thousands of gods, goddesses and god-men dreamed up by men and so very profitably sold to the ignorant and the gullible.
Perhaps most of the greatest minds in each generation of human history appear to have been non-believers although throughout the many centuries of brutal christian totalitarianism – only the most foolish would reveal their skepticism openly for fear of a very long slow and agonising death at the hands of the christian overlords and inquisitors.
As Sam Clemens wrote:
None of the gods have ever troubled an intellectual, they have nothing to do with them.
Faith is believing what you know ain’t so.