Here's the passage in Moore's book, Ethics, that I alluded to earlier. It is impossible to exaggerate the frequency of the occasions on which we all of us make a distinction between two things, neither of which did happen,?a distinction which we express by saying, that whereas the one could have happened, the other could not. No distinction is commoner than this. And no one, I think, who fairly examines the instances in which we make it, can doubt about three things: namely (1) that very often there really is some distinction between the two things, corresponding to the language which we use; (2) that this distinction, which really does subsist between the things, is the one which we mean to express by saying that the one was possible and the other impossible; and (3) that this way of expressing it is a perfectly proper and legitimate way. But if so, it absolutely follows that one of the commonest and most legitimate usages of the phrases could and could not is to express a difference, which often really does hold between two things neither of which did actually happen. Only a few instances need be given. I could have walked a mile in twenty minutes this morning, but I certainly could not have run two miles in five minutes. I did not, in fact, do either of these two things; but it is pure nonsense to say that the mere fact that I did not, does away with the distinction between them, which I express by saying that the one was within my powers, whereas the other was not. Although I did neither, yet the one was certainly possible to me in a sense in which the other was totally impossible. Or, to take another instance: It is true, as a rule, that cats can climb trees, whereas dogs can?t. Suppose that on a particular afternoon neither A?s cat nor B?s dog do climb a tree. It is quite absurd to say that this mere fact proves that we must be wrong if we say (as we certainly often should say) that the cat could have climbed a tree, though she didn?t, whereas the dog couldn?t. Or, to take an instance which concerns an inanimate object. Some ships can steam 20 knots, whereas others can?t steam more than 15. And the mere fact that, on a particular occasion, a 20-knot steamer did not actually run at this speed certainly does not entitle us to say that she could not have done so, in the sense in which a 15-knot one could not. On the contrary, we all can and should distinguish between cases in which (as, for instance, owing to an accident to her propeller) she did not, because she could not, and cases in which she did not, although she could. Instances of this sort might be multiplied quite indefinitely; and it is surely quite plain that we all of us do continually use such language: we continually, when considering two events, neither of which did happen, distinguish between them by saying that whereas the one was possible, though it didn?t happen, the other was impossible. And it is surely quite plain that what we mean by this (whatever it may be) is something which is often perfectly true. But, if so, then anybody who asserts, without qualification, Nothing ever could have happened, except what did happen, is simply asserting what is false. (Ch. 6 ¶7) http://fair-use.org/g-e-moore/ethics/chapter-vi Robert Paul Reed College ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html