Isaac Newton Quotes

Powerful Isaac Newton for Daily Growth

About Isaac Newton

Isaac Newton (1643-1727), an English mathematician, physicist, and astronomer, is renowned as one of the most influential scientists in history. Born on Christmas Day, 1643, in Woolsthorpe, Lincolnshire, England, Newton was the son of a yeoman farmer who died before his birth. Attracted to mathematics and science from an early age, Newton's education was disrupted by the death of his mother when he was three months old, leaving him to be raised by his grandparents. He attended the University of Cambridge, where his exceptional mathematical and scientific abilities were recognized by Isaac Barrow, the Lucasian Professor of Mathematics, who later left the position for Newton in 1669. Newton's groundbreaking work began when he was working as a warden at the university. In 1665, plague forced the college to close, and Newton returned home, where he developed his theory of calculus and began formulating the three laws of motion that would become the foundation of classical mechanics. Simultaneously, he studied the works of astronomer Johannes Kepler and philosopher René Descartes, which influenced his development of the laws of gravity and optics. In 1687, Newton published "Philosophiæ Naturalis Principia," widely recognized as one of the most important works in the history of science. The book, translated as "Mathematical Principles of Natural Philosophy," outlined his three laws of motion and universal gravitation, providing a new understanding of the physical world and solidifying Newton's legacy. His later work focused on optics, culminating in the publication of "Opticks" (1704), which detailed his experiments with prisms and the discovery of the spectrum of white light. Newton's impact on science is immeasurable, as he laid the groundwork for modern physics, mathematics, and optics. He died in 1727 at the age of 84, leaving behind a lasting legacy that continues to inspire scientists and scholars today. Some of his most famous quotes include "If I have seen further, it is by standing on the shoulders of giants" (referencing the work of those who came before him) and "What we know is a drop, what we don't know is an ocean."

Interpretations of Popular Quotes

"If I have seen further, it is by standing on the shoulders of Giants."

This quote by Sir Isaac Newton expresses a profound appreciation for building upon the work of others. He acknowledges that his achievements were not solely his own, but rather he stood "on the shoulders" of those who came before him, thereby gaining a broader perspective and reaching greater heights in knowledge and understanding. In essence, Newton's insight communicates the importance of learning from and building upon the ideas, discoveries, and innovations of others as a means to progress further in one's field.


"What we know is a drop, what we don't know is an ocean."

Isaac Newton's quote "What we know is a drop, what we don't know is an ocean" signifies that our current knowledge, no matter how extensive it may seem, is minuscule compared to the vastness of all there is to learn and discover in the universe. It serves as a humbling reminder that even the most brilliant minds are only scratching the surface of understanding reality. This quote encourages us to continue seeking, questioning, and learning, appreciating that our quest for knowledge will always be ongoing.


"Gravity explains the motions of the planets, but it cannot explain who set the planets in motion."

This quote suggests that while Newton's laws of gravity can accurately describe and predict the movements of celestial bodies such as planets, they do not address or solve the question of their initial creation or setter. In other words, Newton acknowledges that physics can explain how the universe functions, but it does not provide answers to philosophical questions about the origin of the universe. This is a profound reminder of the limitations of scientific understanding when it comes to the ultimate origins and mysteries of our cosmos.


"For every action, there is an equal and opposite reaction."

Isaac Newton's third law of motion, "For every action, there is an equal and opposite reaction," explains the reciprocal nature of forces in the physical world. It means that when an object exerts a force on another object, the second object will exert an equal but opposite force back onto the first one. This fundamental concept has far-reaching implications across various fields, including physics, engineering, and even everyday experiences, illustrating the delicate balance and interplay of forces in our universe.


"I can calculate the motion of heavenly bodies, but not the madness of people."

This quote signifies that despite being a great mathematician and physicist who could predict the movements of celestial bodies, Newton acknowledges his inability to comprehend human behavior, or the "madness" of people – meaning irrational actions, decisions, or motivations. It highlights the boundaries between understanding quantifiable and predictable phenomena (like physics) and the complexities of human nature that often defy logical prediction.


Why there is one body in our System qualified to give light and heat to all the rest, I know no reason but because the Author of the System thought it convenient; and why there is but one body of this kind, I know no reason, but because one was sufficient to warm and enlighten all the rest.

- Isaac Newton

Heat, Rest, Give, Qualified

Absolute space, in its own nature, without regard to anything external, remains always similar and immovable. Relative space is some movable dimension or measure of the absolute spaces, which our senses determine by its position to bodies, and which is vulgarly taken for immovable space.

- Isaac Newton

Some, Senses, Immovable, Remains

The centre of the system of the world is immovable.

- Isaac Newton

World, System, Immovable, Centre

We build too many walls and not enough bridges.

- Isaac Newton

Walls, Build, Too, Bridges

Opposite to godliness is atheism in profession, and idolatry in practice. Atheism is so senseless and odious to mankind, that it never had many professors.

- Isaac Newton

Practice, Profession, Odious

This most beautiful system of the sun, planets, and comets, could only proceed from the counsel and dominion of an intelligent and powerful Being.

- Isaac Newton

Could, Counsel, Proceed, Dominion

'God' is a relative word and has a respect to servants, and 'Deity' is the dominion of God, not over his own body, as those imagine who fancy God to be the soul of the world, but over servants.

- Isaac Newton

Fancy, Over, Imagine, Dominion

The word 'God' usually signifies 'Lord', but every lord is not a God. It is the dominion of a spiritual being which constitutes a God: a true, supreme, or imaginary dominion makes a true, supreme, or imaginary God.

- Isaac Newton

Lord, Makes, Which, Dominion

I have explained the phenomena of the heavens and of our sea by the force of gravity, but I have not yet assigned a cause to gravity.

- Isaac Newton

Gravity, Heavens, Cause, Explained

The same thing is to be understood of all bodies, revolved in any orbits. They all endeavour to recede from the centres of their orbits, and were it not for the opposition of a contrary force which restrains them to and detains them in their orbits, which I therefore call Centripetal, would fly off in right lines with a uniform motion.

- Isaac Newton

Same Thing, Bodies, Recede

We are certainly not to relinquish the evidence of experiments for the sake of dreams and vain fictions of our own devising; nor are we to recede from the analogy of Nature, which is wont to be simple and always consonant to itself.

- Isaac Newton

Always, Which, Certainly, Recede

To me there has never been a higher source of earthly honor or distinction than that connected with advances in science.

- Isaac Newton

Science, Never, Connected, Earthly

I do not know what I may appear to the world; but to myself, I seem to have been only like a boy playing on the seashore, and diverting myself now and then in finding a smoother pebble or prettier shell than ordinary, while the great ocean of truth lay all undiscovered before me.

- Isaac Newton

Been, Before, While, Appear

The same law takes place in a system, consisting of many bodies, as in one single body, with regard to their persevering in their state of motion or of rest. For the progressive motion, whether of one single body or of a whole system of bodies, is always to be estimated from the motion of the center of gravity.

- Isaac Newton

Body, Bodies, Whole, Progressive

Are not rays of light very small bodies emitted from shining substances?

- Isaac Newton

Small, Very, Substances, Shining

The Ignis Fatuus is a vapor shining without heat.

- Isaac Newton

Heat, Without, Shining

I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.

- Isaac Newton

Trust, Been, Before, Now And Then

An object in motion tends to remain in motion along a straight line unless acted upon by an outside force.

- Isaac Newton

Motion, Line, Straight Line, Object

Resistance is usually ascribed to bodies at rest, and impulse to those in motion, but motion and rest, as commonly conceived, are only relatively distinguished; nor are those bodies always truly at rest, which commonly are taken to be so.

- Isaac Newton

Rest, Always, Which, Relatively

A man may imagine things that are false, but he can only understand things that are true, for if the things be false, the apprehension of them is not understanding.

- Isaac Newton

Imagination, May, Imagine, Apprehension

The smaller the planets are, they are, other things being equal, of so much the greater density; for so the powers of gravity on their several surfaces come nearer to equality. They are likewise, other things being equal, of the greater density, as they are nearer to the sun.

- Isaac Newton

Other, Smaller, Density, Likewise

We account the Scriptures of God to be the most sublime philosophy.

- Isaac Newton

God, Philosophy, Most, Scriptures

God is the same God, always and everywhere. He is omnipresent not virtually only, but also substantially, for virtue cannot subsist without substance.

- Isaac Newton

Always, Substance, Virtually, Omnipresent

Errors are not in the art but in the artificers.

- Isaac Newton

Art, Errors

The motions of the comets are exceedingly regular, and they observe the same laws as the motions of the planets, but they differ from the motions of vortices in every particular and are often contrary to them.

- Isaac Newton

Space, Laws, Particular, Differ

As a blind man has no idea of colors, so have we no idea of the manner by which the all-wise God perceives and understands all things.

- Isaac Newton

Blind, Idea, Which, All Things

It may be that there is no such thing as an equable motion, whereby time may be accurately measured. All motions may be accelerated or retarded, but the true, or equable, progress of absolute time is liable to no change.

- Isaac Newton

Motion, Measured, May, Retarded

My powers are ordinary. Only my application brings me success.

- Isaac Newton

Success, Brings, Application, Powers

Truth is ever to be found in simplicity, and not in the multiplicity and confusion of things.

- Isaac Newton

Truth, Ever, Multiplicity, Confusion

It is indeed a matter of great difficulty to discover, and effectually to distinguish, the true motions of particular bodies from the apparent because the parts of that immovable space, in which those motions are performed, do by no means come under the observation of our senses.

- Isaac Newton

Senses, Immovable, Bodies, Apparent

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