Richard P. Feynman Quotes about Knowledge
I think it's much more interesting to live not knowing than to have answers which might be wrong.
Richard P. Feynman (2005). “The Pleasure of Finding Things Out: The Best Short Works of Richard P. Feynman”, p.21, Hachette UK
A very great deal more truth can become known than can be proven.
Richard P. Feynman (2015). “The Quotable Feynman”, p.111, Princeton University Press
"Horizon (The Pleasure of Finding Things Out)". Documentary (November 23, 1981), later published in "No Ordinary Genius: The Illustrated Richard Feynman" edited by Christopher Sykes (p. 239), 1994.
"The Feynman Lectures on Physics". Physics textbook by Richard P. Feynman, Robert B. Leighton, and Matthew Sands, volume I; lecture 1, "Atoms in Motion"; section 1-2, "Matter is made of atoms"; p. 1-2, 1964.
Richard P. Feynman, Robert B. Leighton, Matthew Sands (2015). “The Feynman Lectures on Physics, Vol. II: The New Millennium Edition: Mainly Electromagnetism and Matter”, p.678, Basic Books