Perfectly Reasonable Deviations from the Beaten Track

Perfectly Reasonable Deviations from the Beaten Track
	First edition cover
Editor	Michelle Feynman
Author	Richard P. Feynman
Language	English
Genre	Anthology
Publisher	Basic Books
Publication date	5 April 2005
Publication place	United States
Media type	Print
Pages	486 pp.
ISBN	978-0738206363

Last updated November 10, 2025

Perfectly Reasonable Deviations from the Beaten Track: The Letters of Richard P. Feynman is a collection of Nobel Prize winner Richard Feynman's letters.^[1]^[2]^[3]

The book was edited by his daughter, Michelle Feynman, and includes a foreword by Timothy Ferris. The book is also titled Don't You Have Time to Think?^[4]

References

↑ Zernike, Kate (2005-05-08). "'Perfectly Reasonable Deviations From the Beaten Track': A Word From the Wise". The New York Times . Archived from the original on 2008-12-11. Retrieved 2009-07-26.
↑ Wyatt, Edward (2005-04-07). "The Scientist Is Gone, But Not His Book Tour". The New York Times . Archived from the original on 2012-11-08. Retrieved 2009-07-26.
↑ Chown, Marcus (2005-03-26). "Perfectly Reasonable Deviations from the Beaten Track: The letters of Richard P. Feynman". New Scientist . Archived from the original on 2009-08-12. Retrieved 2009-07-26.
↑ Clegg, Brian. "Review - Perfectly Reasonable Deviations". Popular Science . Creativity Unleashed Limited. Archived from the original on 2009-10-19. Retrieved 2009-07-26.

External links

Interview with Michelle Feynman
National Public Radio: The daughter of Richard Feynman talks about a new book of his collected letters
WNYC Radio: Eight sample letters from the book
About this book Archived 2007-04-15 at the Wayback Machine from Basic Books, the publisher

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[nytimes1-1] Zernike, Kate (2005-05-08). "'Perfectly Reasonable Deviations From the Beaten Track': A Word From the Wise". The New York Times . Archived from the original on 2008-12-11. Retrieved 2009-07-26.

[nytimes2-2] Wyatt, Edward (2005-04-07). "The Scientist Is Gone, But Not His Book Tour". The New York Times . Archived from the original on 2012-11-08. Retrieved 2009-07-26.

[newscientist-3] Chown, Marcus (2005-03-26). "Perfectly Reasonable Deviations from the Beaten Track: The letters of Richard P. Feynman". New Scientist . Archived from the original on 2009-08-12. Retrieved 2009-07-26.

[popularscience.co.uk-4] Clegg, Brian. "Review - Perfectly Reasonable Deviations". Popular Science . Creativity Unleashed Limited. Archived from the original on 2009-10-19. Retrieved 2009-07-26.

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v t e Richard Feynman
Career	Feynman diagram Feynman–Kac formula Wheeler–Feynman absorber theory Bethe–Feynman formula Hellmann–Feynman theorem Feynman slash notation Feynman parametrization Path integral formulation Parton model Sticky bead argument One-electron universe Quantum cellular automaton Rogers Commission Report Feynman checkerboard Feynman sprinkler
Works	"There's Plenty of Room at the Bottom" (1959) The Feynman Lectures on Physics (1964) The Character of Physical Law (1965) QED: The Strange Theory of Light and Matter (1985) Surely You're Joking, Mr. Feynman! (1985) What Do You Care What Other People Think? (1988) Feynman's Lost Lecture: The Motion of Planets Around the Sun (1997) The Meaning of It All (1999) The Pleasure of Finding Things Out (1999) Perfectly Reasonable Deviations from the Beaten Track (2005)
Family	Joan Feynman (sister) Charles Hirshberg (nephew)
Related	Namesakes One-loop Feynman diagram Quantum Man: Richard Feynman's Life in Science Tuva or Bust! Feynman Prize in Nanotechnology Infinity(1996 film) QED (2001 play) The Challenger Disaster(2013 film)