"The physicist who states a law of nature with the aid of a mathematical formula is abstracting a real feature of a real material world, even if he has to speak of numbers, vectors, tensors, state-functions, or whatever to make the abstraction."

“. "I think part of the appeal of mathematical logic is that the formulas look mysterious - you write backward Es!”

“No sane person should believe that something is 'subjective' merely because it cannot be settled beyond controversy.”

“Hilary Putnam: On Mind, Meaning and Reality, Interview by Josh Harlan, The Harvard Review of Philosophy, spring 1992.”

“It was Rudolf Carnap’s dream for the last three decades of his life to show that science proceeds by a formal syntactic method; today no one to my knowledge holds out any hope for that project.”

“What we are left with, if what I have said so far is right, is a conclusion that I initially found very distressing: either GRW or some successor, or else Bohm or some successor, is the correct interpretation—or, to include a third possibility to please Itamar Pitowski, we will just fail to find a scientific realist interpretation which is acceptable.”