“Incumbent on you to believe!  I suppose you mean, if there had been any system which you could not but believe; which you must believe whether you would or not.  No doubt, in that case, the requisite evidence would have been such that scepticism would have been impossible; that word ‘incumbent’ implies duty; and that word duty is the key to the whole mystery, for it implies the possibility of resisting its claims.  We do not speak of its being incumbent on a man to run out of a burning house, or to swim, if he can, when thrown into deep water.  He cannot help it.  If there be a Supreme Ruler of the universe, and if the posture of his intelligent creatures be that of submissive obedience to him, it is inconceivable that a man can ever have experience of his being willing to perform that duty with the sort of demonstration which you demand; and, for aught we know, it may be impossible, constituted as we are, that we should ever be actually trained to that duty, except in the midst of very much less than certainty.  Now, if this be so,—­and I defy you or any man to prove that it may not be so,—­then we are asking a simple impossibility when we ask that we may be freed from these conditions; for it is asking that we may perform our duty, under circumstances which shall render all duty impossible.”  I pursued this subject at some length, and reminded him that the supposed law of our religious condition was throughout in analogy with that of the entire condition of our present life, and in conformity with his own rule of the probable; that it is probable evidence only that is given to man in either case, and “probable evidence,” as Bishop Butler says, “often of even wretchedly insufficient character.”  Nature, or rather God himself, everywhere cries aloud to us, “O mortals! certainty, demonstration, infallibility, are not for you, and shall not be given to you; for there must be a sphere for faith, hope, sincerity, diligence, patience.”  And as if to prove to us, not only that this evidence is what we must trust to, but that we safely may, He impels us by strong necessities of our lower nature operating on the higher (which would otherwise, perhaps, plead for the sceptic’s inaction in relation to this as well as to another world) to play our part; if we stand shivering on the brink of action, necessity plunges us headlong in; if we fear to hoist the sail, the strength of the current of life snaps our moorings, and compels us to drive.  I reminded him, that the general result also shows that, as man must, so he may, can, will, shall, (and so through all the moods and tenses of contingency,) do well; that faith in that same sort of evidence which the sceptic rejects when urged in behalf of religion, prompts the farmer to cast in his seed, though he can command no blink of sunshine, nor a drop of rain; the merchant to commit his treasures to the deep, though they may all go to the bottom, and sometimes do; the physician to essay the cure of his patient, though often half in