"Why," I replied, "we can surely adopt postulates, as indeed we always do in practical life. Every man who is about to undertake anything makes the assumption, in the first place, that it is worth doing, and In the second place that it is possible to be done. He may be wrong in both these assumptions, but without them he could not move a step. And so with regard to the business of life, as a whole, it is necessary to assume, if we are to make anything of it at all, both that there is Good, and that we know something about it; and also, I think, that it is somehow or other realizable; but I do not know that any of these assumptions could be proved."
"But what right have we, then, to make such assumptions?"
"We have none at all, so far as knowledge is concerned. Indeed, to my mind, it is necessary, if we are to be honest with ourselves, that we should never forget that they are assumptions, so long as they have not received definite proof. But still they are, I think, as I said, assumptions we are bound to make, if we are to give any meaning to life. We might perhaps call them 'postulates of the will'; and our attitude, when we adopt them, that of faith."
"Faith!" protested Wilson, "that is a dangerous word!"
"It is," I agreed. "Yet I doubt whether we can dispense with it. Only we must remember that to have 'faith' in a proposition is not to affirm that it is true, but to live as we should do if it were. It is, in fact, an attitude of the will, not of the understanding; the attitude of the general going into battle, not of the philosopher in his closet."
"But," he objected, "where we do not know, the proper attitude is suspense of mind."
"In many matters, no doubt," I replied, "but surely not in those with which we are dealing. For we must live or die; and if we are to choose to do either, we must do so by virtue of some assumption about the Good."
"But why should we choose to do either? Why should not we simply wait?"
"But wait how? wait affirming or denying? active or passive? Is it possible to wait without adopting an attitude? Is not waiting itself an attitude, an acting on the assumption that it is good to wait?"
"But, at any rate, it does not involve assumptions as large as those which you are trying to make us accept."