Isaac Newton1643–1727The quotations of
Isaac Newton
English mathematician and physicist
1643–1727
10 quotes, most often on Science, Truth & Lies and Knowledge. Part of the Scientists collection.
If I have seen further, it is by standing on the shoulders of giants.
Letter to Robert Hooke (15 February 1676) [dated as 5 February 1675 using the Julian calendar with March 25th rather than January 1st as New Years Day, equivalent to 15 February 1676 by Gregorian reckonings.] A facsimile of the original is online atIf I am anything, which I highly doubt, I have made myself so by hard work.
- Memoirs of the Life, Writings, and Discoveries of Sir Isaac Newton (1855) by Sir David Brewster (Volume II. Ch. 27)
- Reply upon being asked how he made his discoveries, as quoted in “Biographia Britannica: Or the Lives of the Most Eminent Persons who Have Flourished in Great Britain from the Earliest Ages Down to the Present Times, Volume 5 “, by W. Innys (1760)
Plato is my friend — Aristotle is my friend — but my greatest friend is truth.
These are notes in Latin that Newton wrote to himself that he titled: Quaestiones Quaedam Philosophicae [Certain Philosophical Questions] (c. 1664)
Often credited to Isaac Newton
Quotes often credited to Isaac Newton that were said or written by someone else.






