---
title: "3 Sir Isaac Newton Quotes"
description: "Sir Isaac Newton was an English polymath active as an mathematician, physicist, astronomer, alchemist, theologian, author and inventor. He was a key fig..."
image: "https://sms4smile.com/quotes/i/006/sir-isaac-newton-87955_end-of-the-world_about-the-time-of-the-end-a-body-of-men_569488.jpg"
---

# Sir Isaac Newton

 **3** quotes in **3** categories

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Sir Isaac Newton was an English polymath active as an mathematician, physicist, astronomer, alchemist, theologian, author and inventor. He was a key figure in the Scientific Revolution and the Enlightenment that followed. His book Philosophiæ Naturalis Principia Mathematica, first published in 1687,

##  Quotes by Sir Isaac Newton

> [About the time of the end, a body of men will be raised up who will turn their attention to the prophecies,…](https://sms4smile.com/quotes/sir-isaac-newton/about-the-time-of-the-end-a-body-of-men-will-be-raised-up-who-will/)

[Sir Isaac Newton](https://sms4smile.com/quotes/author/sir-isaac-newton/)

[End of the world](https://sms4smile.com/quotes/about/end-of-the-world/)

[Image](https://sms4smile.com/quotes/i/006/sir-isaac-newton-87955_end-of-the-world_about-the-time-of-the-end-a-body-of-men_569488.jpg)

> [“A man may imagine things that are false, but he can only understand things that are true.”](https://sms4smile.com/quotes/sir-isaac-newton/a-man-may-imagine-things-that-are-false-but-he-can-only-understand/)

[Sir Isaac Newton](https://sms4smile.com/quotes/author/sir-isaac-newton/)

[Understand Things](https://sms4smile.com/quotes/about/understand-things/)

[Image](https://sms4smile.com/quotes/i/369/sir-isaac-newton-87955_understand-things_a-man-may-imagine-things-that-are-false_797491.jpg)

> [For every action there is a reaction.](https://sms4smile.com/quotes/sir-isaac-newton/for-every-action-there-is-a-reaction/)

[Sir Isaac Newton](https://sms4smile.com/quotes/author/sir-isaac-newton/)

[Action](https://sms4smile.com/quotes/about/action/)

[Image](https://sms4smile.com/quotes/i/d2a/sir-isaac-newton-87955_actions-speak-louder_for-every-action-there-is-a-reaction-213_2138473.jpg)

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