Quotations by Freeman Dyson

The great advances in science usually result from new tools rather than from new doctrines.
American Mathemtical Monthly 103 (1996), 805.

I am acutely aware of the fact that the marriage between mathematics and physics, which was so enormously fruitful in past centuries, has recently ended in divorce.
Missed Opportunities, 1972. (Gibbs Lecture)

For a physicist mathematics is not just a tool by means of which phenomena can be calculated, it is the main source of concepts and principles by means of which new theories can be created.
Mathematics in the Physical Sciences.

JOC/EFR May 2011

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