Is ‘There Are External Objects’ an Empirical Proposition?
Alice Ambrose once criticized Moore for treating the proposition ‘There are external objects’ as an empirical one. She said that those who denied that we could know this proposition to be true would not accept any evidence as going against their denial of it, and were not regarding the issue of its truth as empirical. She also maintained that one could not point out an external object in the way in which one could point out a dime or nickel and alleged on these grounds that saying that there are external objects is not the same sort of thing as saying that there are coins. The issue arose concerning Moore's paper, “Proof of an External World.“In “Reply to My Critics,” Moore pointed out that he had been concerned in “Proof of an External World” not to prove that we know that there are external objects, but rather to prove that there are external objects. But he applied Ambrose's remarks to that proposition. Moore rightly asserted that the fact that someone denies that there are external objects and treats all evidence as irrelevant to the issue does not show that the proposition he denies fails to be empirical.