This argument accordingly suffers from the same weakness as the similar argument of Pascal in favour of Catholic orthodoxy. You should force yourself to believe in it, he said, because if you do so and are right you win heaven, while if you are wrong you lose nothing. What would Protestants, Mohammedans, and Hindus say to that? Those alternatives of Pascal's are not the sole nor the true alternatives; such a wager--betting on the improbable because you are offered big odds--is an unworthy parody of the real choice between wisdom and folly. There is no heaven to be won in such a spirit, and if there was, a philosopher would despise it. So William James would have us bet on immortality, or bet on our power to succeed, because if we win the wager we can live to congratulate ourselves on our true instinct, while we lose nothing if we have made a mistake; for unless you have the satisfaction of finding that you have been right, the dignity of having been right is apparently nothing. Or if the argument is rather that these beliefs, whether true or false, make life better in this world, the thing is simply false. To be boosted by an illusion is not to live better than to live in harmony with the truth; it is not nearly so safe, not nearly so sweet, and not nearly so fruitful. These refusals to part with a decayed illusion are really an infection to the mind. Believe, certainly; we cannot help believing; but believe rationally, holding what seems certain for certain, what seems probable for probable, what seems desirable for desirable, and what seems false for false.
In this matter, as usual, James had a true psychological fact and a generous instinct behind his confused moral suggestions. It is a psychological fact that men are influenced in their beliefs by their will and desires; indeed, I think we can go further and say that in its essence belief is an expression of impulse, of readiness to act. It is only peripherally, as our action is gradually adjusted to things, and our impulses to our possible or necessary action, that our ideas begin to hug the facts, and to acquire a true, if still a symbolic, significance. We do not need a will to believe; we only need a will to study the object in which we are inevitably believing. But James was thinking less of belief in what we find than of belief in what we hope for: a belief which is not at all clear and not at all necessary in the life of mortals. Like most Americans, however, only more lyrically, James felt the call of the future and the assurance that it could be made far better, totally other, than the past. The pictures that religion had painted of heaven or the millennium were not what he prized, although his Swedenborgian connection might have made him tender to them, as perhaps it did to familiar spirits. It was the moral succour offered by religion, its open spaces, the possibility of miracles _in extremis_, that must be retained. If we recoiled at the thought of being dupes (which is perhaps what nature intended us to be), were we less likely to be dupes in disbelieving these sustaining truths than in believing them? Faith was needed to bring about the reform of faith itself, as well as all other reforms.