Equations Quotes
Ralph Waldo Emerson (2004). “Essays”, p.73, 1st World Publishing
Michio Kaku (1995). “Hyperspace: A Scientific Odyssey Through Parallel Universes, Time Warps, and the Tenth Dimension”, p.130, Oxford University Press, USA
Words are a pretty fuzzy substitute for mathematical equations.
Isaac Asimov (1986). “Foundation Trilogy”, Del Rey
Someone told me that each equation I included in the book would halve the sales.
A Brief History of Time acknowledgments (1988)
Richard P. Feynman, Robert B. Leighton, Matthew Sands (2015). “The Feynman Lectures on Physics, Vol. III: The New Millennium Edition: Quantum Mechanics”, p.307, Basic Books
Differential equations won't help you much in the design of aeroplanes - not yet, anyhow.
Nevil Shute (2010). “Stephen Morris”, p.36, Random House