“Wishful thinking gives false gods to people who hunger for gods, but those who yearn for a world with no gods are no less likely to fall victim to their own wishful thinking.”

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.

"We are Power" speech (1980)

Source: The Crucified God: The Cross of Christ as the Foundation and Criticism of Christian Theology

The Way of God's Will Chapter 1-8. Kingdom of Heaven http://www.unification.org/ucbooks/WofGW/wogw1-08.htm Translated 1980.

The Complete Neurotic's Notebook (1981), Unclassified

Science and Spirit interview (2004)

Book II.
Aurora Leigh http://digital.library.upenn.edu/women/barrett/aurora/aurora.html (1857)

All I Really Need to Know I Learned in Kindergarten (1986)