The methods of theoretical physics should be applicable to all those branches of thought in which the essential features are expressible with numbers.
Interpretation
The principles of theoretical physics can and should be applied to various fields that can be quantified numerically.
In this quote, Paul Dirac emphasizes the universality of the methods used in theoretical physics, suggesting that these methodologies are not limited to physics alone but are applicable to any discipline that can be articulated through numerical expressions. This implies a deeper connection between physics and other areas of thought, advocating for a quantitative approach in a wide range of intellectual pursuits.
In practice
In a lecture about the importance of quantitative analysis in various fields like economics.
The research worker, in his efforts to express the fundamental laws of Nature in mathematical form, should strive mainly for mathematical beauty. He should take simplicity into consideration in a subordinate way to beauty ... It often happens that the requirements of simplicity and beauty are the same, but where they clash, the latter must take precedence.
One could perhaps describe the situation by saying that God is a mathematician of a very high order, and He used very advanced mathematics in constructing the universe.
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 therefore becomes desirable that approximate practical methods of applying quantum mechanics should be developed, which can lead to an explanation of the main features of complex atomic systems without too much computation.
It is quite clear that beauty does depend on one's culture and upbringing for certain kinds of beauty, pictures, literature, poetry and so on...But mathematical beauty is of a rather different kind. I should say perhaps it is of a completely different kind and transcends these personal factors. It is the same in all countries and at all periods of time.
It seems that if one is working from the point of view of getting beauty in one's equations, and if one has really a sound insight, one is on a sure line of progress.
There is in my opinion a great similarity between the problems provided by the mysterious behavior of the atom and those provided by the present economic paradoxes confronting the world.
Einstein, stop telling God what to do!
I think that in the discussion of natural problems we ought to begin not with the Scriptures, but with experiments, and demonstrations.
On seeing the marsupials in Australia for the first time and comparing them to placental mammals: βAn unbeliever . . . might exclaim 'Surely two distinct Creators must have been at work'β
It was about three o'clock at night when the final result of the calculation [which gave birth to quantum mechanics] lay before me ... At first I was deeply shaken ... I was so excited that I could not think of sleep. So I left the house ... and awaited the sunrise on top of a rock.
We and other groups are seeing clear statistical links between telomere shortness and risk for a variety of diseases that are becoming very common, such as cardiovascular disease, diabetes and certain cancers.
Our Western science, ever since the 17th century, has been obsessed with the notion of control, of man dominating nature. This obsession has led to disaster.
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