Explore 67 quotes by Physicists

More information about this quote

Topic

Author

Source

Medium

Language

Time

Authentication Score 1

More information on Authentication Score coming soon.

Original Citation

Newton, Isaac. Letter to Robert Hooke. 5 Feb. 1676.

Original citation text copied to clipboard.

Current Citation

Newton, Isaac. Letter to Hooke, 5 February 1675/6." The Correspondence of Isaac Newton. Vol. 1, Cambridge University Press, 2008.

Current citation text copied to clipboard.

Moreover, in a system of two bodies mutually acting upon each other, since the differences between their centres and the common centre of gravity of both are reciprocally as the bodies, the relative motions of those bodies, whether of approaching to or of receding from that centre, will be equal junong themselves. Therefore since the changes which happen to motions are equal and directed to contrary parts.

Buy The Principia at Amazon Buy The Principia at Amazon

More information about this quote

Topic

Author

Source

Genre

Language

Time

Era

Authentication Score 3

More information on Authentication Score coming soon.

Original Citation

Newton, Isaac. "Axiomata sive Leges Motus: [Axioms, or Laws of Motion]." Philosophiae Naturalis Principia Mathematica [The Mathematical Principles of Natural Philosophy], vol. 1. London: Josephi Streater, 1687, law 3.

Original citation text copied to clipboard.

Current Citation

Newton, Isaac. "Axioms, or the Laws of Motion." The Principia, translated by Andrew Motte. Prometheus, 1995, law 3.

Current citation text copied to clipboard.

Every body perseveres in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed thereon.

An Introduction to the Kinetic Theory of Gases

Buy The Principia at Amazon Buy The Principia at Amazon

More information about this quote

Topic

Author

Source

Genre

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Original Citation

Original citation text copied to clipboard.

Current Citation

Newton, Isaac. "Axioms, or the Laws of Motion." The Principia, translated by Andrew Motte. Prometheus, 1995, law 1.

Current citation text copied to clipboard.

Philosophy is written in this grand book-I mean the universe-which stands continually open to our gaze, but it cannot be understood unless one first learns to comprehend the language and interpret the characters in which it is written. It is written in the language of mathematics, and its characters are triangles, circles, and other geometrical figures, without which it is humanly impossible to understand a single word of it; without these, one is wandering about in a dark labyrinth.

Galileo Galilei

More information about this quote

Topic

Author

Language

Time

Authentication Score 2

More information on Authentication Score coming soon.

Original Citation

Galilei, Galileo. Il Saggiatore [The Assayer]. Rome, 1623.

Original citation text copied to clipboard.

Current Citation

Galilei, Galileo. "The Assayer." Discoveries and Opinions of Galileo. Doubleday & Company, 1957.

Current citation text copied to clipboard.

I remembered the line from the Hindu scripture, the Bhagavad Gita…"Now I am become death, the destroyer of worlds."

J. Robert Oppenheimer

On the explosion of the first atomic bomb near Alamogordo, New Mexico, on July 16th, 1945.

More information about this quote

Topic

Speaker

Source

Medium

Genre

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Citation

Oppenheimer, J. Robert. Quoted in NBC White Paper: The Decision to Drop the Bomb. Narrated by Chet Huntley, directed by Fred Freed and Len Giovannitti, written by Fred Freed, 5 Jan. 1965, NBC.

Citation text copied to clipboard.

If we assume that the last breath of, say, Julius Caesar, has by now become thoroughly scattered through the atmosphere, then the chances are that each of us inhales one molecule of it with every breath we take.

James Jeans

There are no other quotes from this source in the Bon Mots database.

Buy An Introduction to the Kinetic Theory of Gases at Amazon Buy An Introduction to the Kinetic Theory of Gases at Amazon

More information about this quote

Topic

Author

Source

Genre

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Citation

Jeans, James. An Introduction to the Kinetic Theory of Gases. Cambridge University Press, 1940, ch. 2.

Citation text copied to clipboard.

God in the Beginning form'd Matter in solid, massy, hard, impenetrable, moveable Particles, of such Sizes and Figures, and with such other Properties, and in such Proportion to Space, as most conduced to the End for which he form'd them.

Opticks: or, A Treatise of the Reflexions, Refractions, Inflexions and Colours of Light

Read Opticks at Project Gutenberg

More information about this quote

Topic

Author

Source

Medium

Genre

Language

Time

Authentication Score 2

More information on Authentication Score coming soon.

Original Citation

Newton, Isaac. Opticks: or, A Treatise of the Reflexions, Refractions, Inflexions and Colours of Light. London: Samuel Smith and Benjamin Walford, 1704, bk. 3, pt. 1, question 31.

Original citation text copied to clipboard.

Current Citation

Newton, Isaac. Opticks. Dover Publications, 2012, bk. 3, pt. 1, question 31.

Current citation text copied to clipboard.

Every tool carries with it the spirit by which it has been created.

Werner Heisenberg

More information about this quote

Topic

Author

Medium

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Citation

Heisenberg, Werner. "An Old and a New Tradition." Gifford Lectures. Winter term 1955-1956, University of St. Andrews, St. Andrews, Scotland, UK.

Citation text copied to clipboard.

Facts which at first seem improbable will, even on scant explanation, drop the cloak which has hidden them and stand forth in naked and simple beauty.

Galileo Galilei

More information about this quote

Topic

Speaker

Author

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Citation

Galilei, Galileo. "Giornata Prima [First Day]." Discorsi e dimostrazioni matematiche intorno a due nuove scienze [Discourses and Mathematicals Demonstrations Relating to Two New Sciences]. Leiden: Ludovico Elzeviro, 1638.

Citation text copied to clipboard.

I
a universe of atoms
an atom in the universe.

Richard Feynman

More information about this quote

Topic

Speaker

Medium

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Citation

Feynman, Richard. "The Value of Science." 1955, National Academy of Sciences, Washington, DC, USA.

Citation text copied to clipboard.

The best evidence we have that time travel is not possible, and never will be, is that we have not been invaded by hordes of tourists from the future.

Stephen Hawking

More information about this quote

Topic

Speaker

Medium

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Citation

Hawking, Stephen. "The Future of the Universe." Jan. 1991, Cambridge University, Cambridge, England, UK. Lecture.

Citation text copied to clipboard.

Since the measuring device has been constructed by the observer... We have to remember that what we observe is not nature in itself but nature exposed to our method of questioning.

Werner Heisenberg

More information about this quote

Topic

Speaker

Medium

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Original Citation

Heisenberg, Werner. Lecture about the Copenhagen interpretation of quantum theory. Gifford Lectures. 1955-1956, University of St Andrews, St Andrews, Scotland.

Original citation text copied to clipboard.

Current Citation

Heisenberg, Werner. "The Copenhagen Interpretation of Quantum Theory." Physics and Philosophy: The Revolution in Modern Science. Harper Perennial Modern Classics, 2007.

Current citation text copied to clipboard.

The alteration of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.

Buy The Principia at Amazon Buy The Principia at Amazon

More information about this quote

Topic

Author

Source

Genre

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Original Citation

Original citation text copied to clipboard.

Current Citation

Newton, Isaac. "Axioms, or the Laws of Motion." The Principia, translated by Andrew Motte. Prometheus, 1995, law 2.

Current citation text copied to clipboard.

Life is like riding a bicycle. To keep your balance you must keep moving.

More information about this quote

Topic

Author

Source

Medium

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Citation

Einstein, Albert. "Letter to his son Eduard." Quoted in Einstein: His Life and Universe, by Walter Isaacson. Simon & Schuster, 2007. Originally from Letter to his Son Eduard, 5 Feb. 1930.

Citation text copied to clipboard.

Unthinking respect for authority is the greatest enemy of truth.

More information about this quote

Topic

Author

Source

Medium

Language

Time

Authentication Score 1

More information on Authentication Score coming soon.

Citation

Einstein, Albert. "To Jost Winteler." The Collected Papers of Albert Einstein, vol. 1: The Early Years, 1879-1902, English Translation Supplement, translated by Anna Beck. Princeton University Press, 1987, no. 115. Originally from Letter to Jost Winteler, 8 July 1901.

Citation text copied to clipboard.

The most beautiful experience we can have is the mysterious. It is the fundamental emotion that stands at the cradle of true art and true science.

More information about this quote

Topic

Author

Source

Medium

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Citation

Einstein, Albert. "What I Believe. Living Philosophies 13." Forum and Century, Oct. 1930, vol. 84, issue 4, pp. 193-194.

Citation text copied to clipboard.

This most beautiful system of the sun, planets and comets, could only proceed from the counsel and dominion of an intelligent and powerful Being... This Being governs all things, not as the soul of the world, but as Lord over all; and on account of his dominion he is wont, to be called Lord God παντοκρατωρ or Universal Ruler.

Buy The Principia at Amazon Buy The Principia at Amazon

More information about this quote

Topic

Author

Source

Genre

Language

Time

Era

Authentication Score 2

More information on Authentication Score coming soon.

Original Citation

Newton, Isaac. Scholium Generale. [General Scolium]. Philosophiae Naturalis Principia Mathematica [The Mathematical Principles of Natural Philosophy] vol. 2. London: Benjamin Motte, 1729.

Original citation text copied to clipboard.

Current Citation

Newton, Isaac. "General Scolium." The Principia, translated by Andrew Motte. Prometheus, 1995.

Current citation text copied to clipboard.

The eternal mystery of the world is its comprehensibility.

Buy Out of My Later Years at Amazon Buy Out of My Later Years at Amazon

More information about this quote

Topic

Author

Source

Medium

Genre

Statement Type

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Original Citation

Einstein, Albert. "Physics and Reality." The Journal of the Franklin Institute, Mar. 1936.

Original citation text copied to clipboard.

Current Citation

Einstein, Albert. "Physics and Reality." The Essential Einstein: His Greatest Works. Penguin, 2008, ch. 13.

Current citation text copied to clipboard.

The whole of science is nothing more than a refinement of every day thinking.

Buy Out of My Later Years at Amazon Buy Out of My Later Years at Amazon

More information about this quote

Topic

Author

Source

Medium

Genre

Language

Time

Authentication Score 3

More information on Authentication Score coming soon.

Original Citation

Einstein, Albert. "Physics and Reality." The Journal of the Franklin Institute, Mar. 1936.

Original citation text copied to clipboard.

Current Citation

Einstein, Albert. "Physics and Reality." The Essential Einstein: His Greatest Works. Penguin, 2008, ch. 13.

Current citation text copied to clipboard.

I never think of the future—it comes soon enough.