In default of any other proof, the thumb would convince me of the existence of a God." - Meaning and context.">
Attributed to Newton as "A défaut d'autres preuves, le pouce me convaincrait de l'existence de Dieu" in a treatise on palmistry: d'Arpentigny, Stanislas (1856), La science de la main, language: French, (2nd ed.) chapter: IV: Le pouce, page: 53, place: Paris, France, publisher: Coulon-Pineau A later translation by Edward Heron-Allen renders the phrase as "In default of any other proofs, the thumb would convince me of the existence of God", and acknowledges that it does not seem to appear in any of Newton's works [d'Arpentigny, Casimir Stanislas (1889), The Science of the Hand, language: English, chapter: Sub-Section IV: The Thumb, page: 138, at: Edward, place: London, England, publisher: Ward, Lock and Co.]
• Reported as something said by Newton in a section on palmistry in Charles Dickens's All the Year Round (1864), Vol. 10, p. 346; later found in "The Book of the Hand" (1867) by A R. Craig, S. Low and Marston, p. 51:
  "In want of other proofs, the thumb would convince me of the existence of a God; as without the thumb the hand would be a defective and incomplete instrument, so without the moral will, logic, decision, faculties of which the thumb in different degrees offers the different signs, the most fertile and the most brilliant mind would only be a gift without worth. [No closing quotations marks exist to specify the end of the quotation and the beginning of the author's commentary.]
  • A slight variant of this is cited as something Newton once "exclaimed" in Human Nature : An Interdisciplinary Biosocial Perspective, Vol. 1, Issues 7-12 (1978), p. 47: "In the absence of any other proof, the thumb alone would convince me of God's existence."

In default of any other proof, the thumb would convince me of the existence of a God.

— Isaac Newton

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "In default of any other proof, the thumb would convince me of the existence of a God." in the context of "Attributed to Newton as "A défaut d'autres preuves, le pouce me convaincrait de l'existence de Dieu" in a treatise on palmistry: d'Arpentigny, Stanislas (1856), La science de la main, language: French, (2nd ed.) chapter: IV: Le pouce, page: 53, place: Paris, France, publisher: Coulon-Pineau A later translation by Edward Heron-Allen renders the phrase as "In default of any other proofs, the thumb would convince me of the existence of God", and acknowledges that it does not seem to appear in any of Newton's works [d'Arpentigny, Casimir Stanislas (1889), The Science of the Hand, language: English, chapter: Sub-Section IV: The Thumb, page: 138, at: Edward, place: London, England, publisher: Ward, Lock and Co.]
• Reported as something said by Newton in a section on palmistry in Charles Dickens's All the Year Round (1864), Vol. 10, p. 346; later found in "The Book of the Hand" (1867) by A R. Craig, S. Low and Marston, p. 51:
  "In want of other proofs, the thumb would convince me of the existence of a God; as without the thumb the hand would be a defective and incomplete instrument, so without the moral will, logic, decision, faculties of which the thumb in different degrees offers the different signs, the most fertile and the most brilliant mind would only be a gift without worth. [No closing quotations marks exist to specify the end of the quotation and the beginning of the author's commentary.]
  • A slight variant of this is cited as something Newton once "exclaimed" in Human Nature : An Interdisciplinary Biosocial Perspective, Vol. 1, Issues 7-12 (1978), p. 47: "In the absence of any other proof, the thumb alone would convince me of God's existence."" to mean that wisdom is timeless.

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Source: Wikiquote: "Isaac Newton" (Quotes) The 'What it means' explanation text was generated by Google Gemini Flash (accessed January 18, 2026). https://gemini.google.com/app
Isaac Newton

About Isaac Newton

Sir Isaac Newton (January 4, 1643 – March 31, 1727 or in Old Style: December 25, 1642 – March 20, 1727) was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a "natural philosopher"), widely recognised as one of the greatest mathematicians and physicists and among the most influential scientists of all time. He was a key figure in the philosophical revolution known as the Enlightenment. His book Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687, established classical mechanics. Newton also made seminal contributions to optics, and shares credit with German mathematician Gottfried Wilhelm Leibniz for developing infinitesimal calculus.