Quote by Putnam, Hilary
"The verification principle is self-refuting; we cannot verify that only verifiable statements are meaningful."
More from Putnam, Hilary
"The world is not intrinsically divided into minds and physical objects."
"Realism is not the view that the world exists independently of all schemes of description."
"Truth is not correspondence to reality."
"We can have a rational picture of the world only if we are willing to question our intuitions."