Physicist Quotes and aphorisms about relativity Albert Einstein Rainer Weiss ,, By the time 1967 had rolled around, general relativity had been relegated to mathematics department... Werner Heisenberg ,, Although the theory of relativity makes the greatest of demands on the ability for abstract thought... Niels Bohr Stephen Hawking Stephen Hawking Brian Greene Roger Penrose Kip Thorne Kip Thorne