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A geodesic that is not a null geodesic has the property that ∫ds, taken along a section of the track with the end points P and Q, is stationary if one makes a small variation of the track keeping the end points fixed.

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More quotes by Paul Dirac

It seems clear that the present quantum mechanics is not in its final form.

The measure of greatness in a scientific idea is the extent to which it stimulates thought and opens up new lines of research.

The scientific work of Georges Lemaître (1968)

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 Evolution of the Physicist's Picture of Nature (1963)

In science one tries to tell people, in such a way as to be understood by everyone, something that no one ever knew before. But in the case of poetry, it's the exact opposite!

Brighter Than a Thousand Suns : A Personal History of the Atomic Scientists (1958)

God used beautiful mathematics in creating the world.

The Cosmic Code : Quantum Physics As The Language Of Nature (1982)

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Quote text and notes from Wikiquote: Paul Dirac (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.