But not only has Agnosticism so far not grown its own morality; there is yet another consideration which leads us to listen with a certain measure of scepticism to the assurances of those who say that right conduct will survive though religion be surrendered. It has perhaps not been generally observed that just as the virtuous agnostic is generally the child of Christian parents, so by a seeming irony he is {179} often found to be the father of Christian children: there is hardly a genuine case on record where "free-thought," Agnosticism, Rationalism, has descended from parents to children to the third or fourth generation without a break, and the practical non-existence of such cases proves something of real and great importance. It has been said that pure-bred Londoners die out in three generations at most, unless new blood from the country is brought in to replenish their failing vital power. If unbelief shows the same incapacity to propagate itself by natural descent--if the descendants of unbelievers show a marked tendency to "revert to type," _i.e._, to religion--such a fact suggests only one adequate explanation, _viz._, the instinct of self-preservation, a return to the soil which made the growth of the flower possible. The virtues of the agnostic may be not unfairly compared to cut flowers, which may continue to shed their perfume for awhile, but are bound to fade before long. Our agnostic ethicists, being themselves the products of a Christian civilisation, may commend, approve and practise--they may _wear_ the Christian virtues; that those virtues will bear transplanting into an agnostic soil and flourish in an agnostic climate is a highly dubious proposition. We can only say that available experience seems to be against it. The Christian morality implies the Christian religion which has created it; as for the {180} high-minded, altruistic individual agnostic, he must simply be pronounced a credit to Christianity.