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)

The human mind is capable of understanding the universe.

Attributed

I do not see how a man can work on the frontiers of knowledge if he is not a bachelor.

Letter to his mother, Florence Dirac

I was taught at school that the first thing to do when one wants to solve a problem is to write down the equations.

Letter to a colleague

I have been trying to get a clear understanding of the quantum theory of radiation, but it is very difficult.

Letter to Niels Bohr 1927

I am not interested in philosophy, only in physics.

Conversation with a colleague, recounted in a letter

I find it very difficult to talk to people. I prefer to think.

Letter to his sister, Béatrice Dirac

I have a new theory of the electron which I think is rather good.

Letter to Niels Bohr 1928

It seems that the fundamental laws of nature are expressed in terms of a beautiful mathematical theory.

Letter to a friend

I am very happy here in Cambridge. It is a good place for thinking.

Letter to his parents

I do not understand why people are so interested in politics. It seems to me a waste of time.

Letter to a friend

The most important thing is to have a clear understanding of the problem.

Letter to a student

I am not good at explaining things. I prefer to write them down.

Letter to a colleague

I think that the future of physics lies in the development of new mathematical methods.

Letter to a friend

I am very busy with my work. I have no time for social activities.

Letter to his family

I have been thinking about the nature of reality, but it is a very difficult problem.

Diary entry

I do not like to speculate. I prefer to deal with facts.

Letter to a colleague

I am not interested in fame. I am only interested in physics.

Letter to a friend

The quantum theory is a very strange theory, but it seems to work.

Letter to a student

I find it very difficult to understand human emotions.

Letter to his sister, Béatrice Dirac

I believe that the fundamental laws of nature are simple and beautiful.

Letter to a colleague