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Today Quotes - Page 54

It is important to realize that in physics today, we have no knowledge of what energy is

Richard P. Feynman, Robert B. Leighton, Matthew Sands (2013). “The Feynman Lectures on Physics, vol. 1 for tablets”, Basic Books

Speak what you think today in hard words and tomorrow speak what tomorrow thinks in hard words again, though it contradict every thing you said today.

Ralph Waldo Emerson (2013). “Delphi Complete Works of Ralph Waldo Emerson (Illustrated)”, p.1279, Delphi Classics