“Plato is my friend — Aristotle is my friend — but my greatest friend is truth.”

—  Isaac Newton

These are notes in Latin that Newton wrote to himself that he titled: Quaestiones Quaedam Philosophicae [Certain Philosophical Questions] (c. 1664)
Variant translations: Plato is my friend, Aristotle is my friend, but my best friend is truth.
Plato is my friend — Aristotle is my friend — truth is a greater friend.
This is a variation on a much older adage, which Roger Bacon attributed to Aristotle: Amicus Plato sed magis amica veritas. Bacon was perhaps paraphrasing a statement in the Nicomachean Ethics: Where both are friends, it is right to prefer truth.

Original

Amicus Plato — amicus Aristoteles — magis amica veritas

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Isaac Newton 171
British physicist and mathematician and founder of modern c… 1643–1727

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