The truth finally becomes apparent that neither in any operation with factual propositions nor in any appeal to instinct can the Innovator find the basis for a system of values. None of the principles he requires are to be found there: but they are all to be found somewhere else. 'All within the four seas are his brothers' (xii. 5) says Confucius of the Chün-tzu, the cuor gentil or gentleman. Humani nihil a me alienum puto says the Stoic. 'Do as you would be done by,' says Jesus. 'Humanity is to be preserved,' says Locke.4 All the practical principles behind the Innovator's case for posterity, or society, or the species, are there from time immemorial in the Tao. But they are nowhere else. Unless you accept these without question as being to the world of action what axioms are to the world of theory, you can have no practical principles whatever. You cannot reach them as conclusions: they are premisses. You may, since they can give no 'reason' for themselves of a kind to silence Gaius and Titius, regard them as sentiments: but then you must give up contrasting 'real' or 'rational' value with sentimental value. All value will be sentimental; and you must confess (on pain of abandoning every value) that all sentiment is not 'merely' subjective. You may, on the other hand, regard them as rational—nay as rationality itself—as things so obviously reasonable that they neither demand nor admit proof. But then you must allow that Reason can be practical, that an ought must not be dismissed because it cannot produce some is as its credential. If nothing is self-evident, nothing can be proved. Similarly if nothing is obligatory for its own sake, nothing is obligatory at all.
To some it will appear that I have merely restored under another name what they always meant by basic or fundamental instinct. But much more than a choice of words is involved. The Innovator attacks traditional values (the Tao) in defence of what he at first supposes to be (in some special sense) 'rational' or 'biological' values. But as we have seen, all the values which he uses in attacking the Tao, and even claims to be substituting for it, are themselves derived from the Tao. If he had really started from scratch, from right outside the human tradition of value, no jugglery could have advanced him an inch towards the conception that a man should die for the community or work for posterity. If the Tao falls, all his own conceptions of value fall with it. Not one of them can claim any authority other than that of the Tao. Only by such shreds of the Tao as he has inherited is he enabled even to attack it. The question therefore arises what title he has to select bits of it for acceptance and to reject others. For if the bits he rejects have no authority, neither have those he retains: if what he retains is valid, what he rejects is equally valid too.
The Innovator, for example, rates high the claims of posterity. He cannot get any valid claim for posterity out of instinct or (in the modern sense) reason. He is really deriving our duty to posterity from the Tao; our duty to do good to all men is an axiom of Practical Reason, and our duty to do good to our descendants is a clear deduction from it. But then, in every form of the Tao which has come down to us, side by side with the duty to children and descendants lies the duty to parents and ancestors. By what right do we reject one and accept the other? Again, the Innovator may place economic value first. To get people fed and clothed is the great end, and in pursuit of its scruples about justice and good faith may be set aside. The Tao of course agrees with him about the importance of getting the people fed and clothed. Unless the Innovator were himself using the Tao he could never have learned of such a duty. But side by side with it in the Tao lie those duties of justice and good faith which he is ready to debunk. What is his warrant? He may be a Jingoist, a Racialist, an extreme nationalist, who maintains that the advancement of his own people is the object to which all else ought to yield. But no kind of factual observation and no appeal to instinct will give him a ground for this option. Once more, he is in fact deriving it from the Tao: a duty to our own kin, because they are our own kin, is a part of traditional morality. But side by side with it in the Tao, and limiting it, lie the inflexible demands of justice, and the rule that, in the long run, all men are our brothers. Whence comes the Innovator's authority to pick and choose?
Since I can see no answer to these questions, I draw the following conclusions. This thing which I have called for convenience the Tao, and which others may call Natural Law or Traditional Morality or the First Principles of Practical Reason or the First Platitudes, is not one among a series of possible systems of value. It is the sole source of all value judgements. If it is rejected, all value is rejected. If any value is retained, it is retained. The effort to refute it and raise a new system of value in its place is self-contradictory. There has never been, and never will be, a radically new judgement of value in the history of the world. What purport to be new systems or (as they now call them) 'ideologies', all consist of fragments from the Tao itself, arbitrarily wrenched from their context in the whole and then swollen to madness in their isolation, yet still owing to the Tao and to it alone such validity as they possess. If my duty to my parents is a superstition, then so is my duty to posterity. If justice is a superstition, then so is my duty to my country or my race. If the pursuit of scientific knowledge is a real value, then so is conjugal fidelity. The rebellion of new ideologies against the Tao is a rebellion of the branches against the tree: if the rebels could succeed they would find that they had destroyed themselves. The human mind has no more power of inventing a new value than of imagining a new primary colour, or, indeed, of creating a new sun and a new sky for it to move in.