Albert Einstein

Albert Einstein Quotes: What He Really Wrote and Said

Einstein's verified quotes on curiosity, imagination, and 'God does not play dice' — sourced to letters and print, plus the famous lines he never said.

Fact-checked · last reviewed 2026-07-10

Albert Einstein's most repeated line online — "God does not play dice with the universe" — is a paraphrase. Nobody has found it in his hand. What he actually wrote, in a letter to his old friend Max Born, is sharper and stranger than the bumper-sticker version. This page gives you Einstein's real sentences, sourced to the page, next to the popular lines that never came from him at all.

On curiosity and value

Weeks before his death, Einstein told a magazine writer named William Miller the closest thing he left to personal advice:

"The important thing is not to stop questioning. Curiosity has its own reason for existence. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery each day. Never lose a holy curiosity."

"Try not to become a man of success but rather try to become a man of value. He is considered successful in our day who gets more out of life than he puts in. But a man of value will give more than he receives."

Both lines ran in LIFE magazine's May 2, 1955 tribute issue, printed two weeks after he died — his last recorded words to a stranger.

On imagination

Asked by an interviewer in 1929 whether he trusted his imagination or his knowledge more, Einstein answered:

"Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."

The real "dice" letter

In December 1926, weeks after quantum mechanics reached its modern form, Einstein wrote to the physicist Max Born:

"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 is not playing at dice."

That is the actual origin of the dice idea, preserved in The Born-Einstein Letters (Macmillan, 1971) — not the tidy slogan that circulates today. It's a good example of how most "Einstein quotes" go wrong: real argument, sanded down into a fortune cookie.

On science and religion

"Science without religion is lame, religion without science is blind."

That line comes from Einstein's own essay on science and religion, not an interview — his famous "cosmic religious feeling" compressed into one balanced sentence.

In his own written voice

From The World As I See It, his essay collection, on what makes a life worth something:

"The true value of a human being is determined primarily by the measure and the sense in which he has attained to liberation from the self."

From a conversation with our Einstein

An excerpt from a conversation with our AI Einstein persona — a stylized recreation, honestly labeled, not a historical record.

Caller: Everyone quotes you saying "God does not play dice." Did you actually say that?

Einstein: Not in those words, no — people tidy a man up after he's gone. What I wrote to Born was that I could not believe He is playing at dice, meaning the old one, the order underneath things. A slogan fits on a mug. My sentence did not, and I never much minded that. The tidy version sells better; the actual letter was closer to the truth.

Quotes Einstein never said

  • "God does not play dice with the universe." A popularized paraphrase — see the real letter above.
  • "Insanity is doing the same thing over and over again and expecting different results." No evidence Einstein said or wrote this, per source-tracing at Quote Investigator.

If an "Einstein quote" sounds like a fortune cookie, check it before you repeat it.

More in this cluster: Einstein hub · his death · biography · facts.

Albert's verified quotes

Every quote below is checked against a primary or scholarly source — the citation sits right under it.

The important thing is not to stop questioning. Curiosity has its own reason for existence. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery each day. Never lose a holy curiosity.
Old Man's Advice to Youth: 'Never Lose a Holy Curiosity' — LIFE magazine, May 2, 1955 (Internet Archive scan)
Try not to become a man of success but rather try to become a man of value. He is considered successful in our day who gets more out of life than he puts in. But a man of value will give more than he receives.
Old Man's Advice to Youth: 'Never Lose a Holy Curiosity' — LIFE magazine, May 2, 1955 (Internet Archive scan)
Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.
What Life Means to Einstein: An Interview by George Sylvester Viereck (Saturday Evening Post, Oct. 26, 1929, p. 117) — Quote Investigator
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 is not playing at dice.
The Born-Einstein Letters (letter to Max Born, December 1926) — Internet Archive scan of Macmillan 1971 edition
Science without religion is lame, religion without science is blind.
Science and Religion — PDF mirror of sacred-texts.com text (silene.ong)
The true value of a human being is determined primarily by the measure and the sense in which he has attained to liberation from the self.
The World As I See It — Internet Archive scan of John Lane the Bodley Head edition
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