“Not only does God play dice with the world—He does not let us see what He has rolled.”

Source: The Born-Einstein Letters 1916-55

1950s, Loving Your Enemies (November 1957)
Context: There is something within all of us that causes us to cry out with Ovid, the Latin poet, "I see and approve the better things of life, but the evil things I do." There is something within all of us that causes us to cry out with Plato that the human personality is like a charioteer with two headstrong horses, each wanting to go in different directions. There is something within each of us that causes us to cry out with Goethe, "There is enough stuff in me to make both a gentleman and a rogue." There is something within each of us that causes us to cry out with Apostle Paul, "I see and approve the better things of life, but the evil things I do." So somehow the "isness" of our present nature is out of harmony with the eternal "oughtness" that forever confronts us. And this simply means this: That within the best of us, there is some evil, and within the worst of us, there is some good. When we come to see this, we take a different attitude toward individuals. The person who hates you most has some good in him; even the nation that hates you most has some good in it; even the race that hates you most has some good in it. And when you come to the point that you look in the face of every man and see deep down within him what religion calls "the image of God," you begin to love him in spite of. No matter what he does, you see God’s image there. There is an element of goodness that he can never sluff off. Discover the element of good in your enemy. And as you seek to hate him, find the center of goodness and place your attention there and you will take a new attitude.

Letter to Max Born (4 December 1926); The Born-Einstein Letters (translated by Irene Born) (Walker and Company, New York, 1971) <!-- p. 90 --> .
Einstein himself used variants of this quote at other times. For example, in a 1943 conversation with William Hermanns recorded in Hermanns' book Einstein and the Poet, Einstein said: "As I have said so many times, God doesn't play dice with the world." ( p. 58 http://books.google.com/books?id=QXCyjj6T5ZUC&lpg=PP1&pg=PA58#v=onepage&q&f=false)
1920s
Context: Quantum mechanics is certainly imposing. But an inner voice tells me that it is not yet the real thing. The theory says a lot, but does not really bring us any closer to the secret of the "old one." I, at any rate, am convinced that He does not throw dice.

The Baby of Mâcon

Odysseus, Book VIII, line 560
The Odyssey : A Modern Sequel (1938)

2:2 <!-- p. 317 -->
Paraphrased variant: Man can certainly flee from God... but he cannot escape him. He can certainly hate God and be hateful to God … but he cannot change into its opposite the eternal love of God which triumphs even in his hate.
Quoted in Simpson's Contemporary Quotations (1998) by James Beasley Simpson.
Church Dogmatics (1932–1968)
Context: Man can certainly keep on lying (and he does so); but he cannot make truth falsehood. He can certainly rebel (he does so); but he can accomplish nothing which abolishes the choice of God. He can certainly flee from God (he does so); but he cannot escape Him. He can certainly hate God and be hateful to God (he does and is so); but he cannot change into its opposite the eternal love of God which triumphs even in His hate. He can certainly give himself to isolation (he does so — he thinks, wills and behaves godlessly, and is godless); but even in his isolation he must demonstrate that which he wishes to controvert — the impossibility of playing the "individual" over against God. He may let go of God, but God does not let go of him.

IV, 18
Source: Meditations (c. 121–180 AD), Book IV

Source: The Collected Stories of Katherine Anne Porter