Paul Dirac

Physics English 1902 – 1984 692 quotes

Predicted antimatter and formulated Dirac equation

Most quoted

"The underlying physical laws necessary for the mathematical theory of a large part of physics and the whole of chemistry are thus completely known, and the difficulty is only that the exact application of these laws leads to equations much too complicated to be soluble. It is the purpose of theoretical physics to show that it is possible to derive, from these equations, the properties of the actual world."

— from Proceedings of the Royal Society, 1929

"The methods of progress in theoretical physics have undergone a vast change during the present century. The classical tradition has been to consider the world to be an association of observable objects (particles, fluids, fields, etc.) moving about according to definite laws of force, so that one could form a mental picture in space and time of the whole scheme."

— from Quantised Singularities in the Electromagnetic Field, 1931

"The most powerful method of advance that can be suggested at present is to employ all the resources of pure mathematics in attempts to perfect and generalise the mathematical formalism that forms the existing basis of theoretical physics, and after each success in this direction, to try to interpret the new mathematical features in terms of physical entities."

— from Quantised Singularities in the Electromagnetic Field, 1931

All quotes by Paul Dirac (692)

Wisdom: Seek beauty, truth will follow.

Advice 1960

Interview quote: I am an atheist, but respect religious feelings.

Interview 1963

Comeback: To a critic, 'Your equation lacks beauty.'

Anecdote 1935

Science: The anthropic principle explains fine-tuning.

Late comment 1980

Reflection: Eighty years of fruitful labor.

Birthday reflection 1982

Key work: Lectures on quantum mechanics.

Book 1964

Speech: The evolution of physical ideas.

Speech 1951

Personal: I enjoyed birdwatching in my later years.

Interview 1975

Aphorism: The universe rewards the curious mind.

Attributed 1970

Humor: Dirac never tells jokes; he proves them.

Attributed

Philosophy: Mathematics is discovered, not invented.

Lecture 1965

Science observation: Time travel is forbidden by chronology protection.

Comment 1980

Life: Regrets are for those who don't try.

Final reflection 1984

Art: The aesthetics of science.

Interview 1962

Politics: Global challenges require global science.

Speech 1970

Professional: Influenced generations of physicists.

Retrospective 1980

Wisdom: Humility before nature's mysteries.

Advice 1955

Letter excerpt: Congratulations on your Nobel, Weisskopf.

Letter 1964

Reflection on meaning: The pursuit of knowledge is the meaning.

Autobiography 1977

Joke: What's the difference between God and a physicist? God doesn't think he's Dirac.

Attributed humor