It may be said that I have fallen between two stools, and that the subject is one which, in my hands, has shown neither artistic nor scientific value. This would be serious. To fall between two stools, and to be hanged for a lamb, are the two crimes which—

“Nor gods, nor men, nor any schools allow.”

Of the latter, I go in but little danger; about the former, I shall know better when the public have enlightened me.

The practical value of the views here advanced (if they be admitted as true at all) would appear to be not inconsiderable, alike as regards politics or the well-being of the community, and medicine which deals with that of the individual. In the first case we see the rationale of compromise, and the equal folly of making experiments upon too large a scale, and of not making them at all. We see that new ideas cannot be fused with old, save gradually and by patiently leading up to them in such a way as to admit of a sense of continued identity between the old and the new. This should teach us moderation. For even though nature wishes to travel in a certain direction, she insists on being allowed to take her own time; she will not be hurried, and will cull a creature out even more surely for forestalling her wishes too readily, than for lagging a little behind them. So the greatest musicians, painters, and poets owe their greatness rather to their fusion and assimilation of all the good that has been done up to, and especially near about, their own time, than to any very startling steps they have taken in advance. Such men will be sure to take some, and important, steps forward; for unless they have this power, they will not be able to assimilate well what has been done already, and if they have it, their study of older work will almost indefinitely assist it; but, on the whole, they owe their greatness to their completer fusion and assimilation of older ideas; for nature is distinctly a fairly liberal conservative rather than a conservative liberal. All which is well said in the old couplet—

“Be not the first by whom the new is tried,
Nor yet the last to throw the old aside.”

Mutatis mutandis, the above would seem to hold as truly about medicine as about politics. We cannot reason with our cells, for they know so much more than we do that they cannot understand us;—but though we cannot reason with them, we can find out what they have been most accustomed to, and what, therefore, they are most likely to expect; we can see that they get this, as far as it is in our power to give it them, and may then generally leave the rest to them, only bearing in mind that they will rebel equally against too sudden a change of treatment, and no change at all.

Friends have complained to me that they can never tell whether I am in jest or earnest. I think, however, it should be sufficiently apparent that I am in very serious earnest, perhaps too much so, from the first page of my book to the last. I am not aware of a single argument put forward which is not a bonâ fide argument, although, perhaps, sometimes admitting of a humorous side. If a grain of corn looks like a piece of chaff, I confess I prefer it occasionally to something which looks like a grain, but which turns out to be a piece of chaff only. There is no lack of matter of this description going about in some very decorous volumes; I have, therefore, endeavoured, for a third time, to furnish the public with a book whose fault should lie rather in the direction of seeming less serious than it is, than of being less so than it seems.

At the same time, I admit that when I began to write upon my subject I did not seriously believe in it. I saw, as it were, a pebble upon the ground, with a sheen that pleased me; taking it up, I turned it over and over for my amusement, and found it always grow brighter and brighter the more I examined it. At length I became fascinated, and gave loose rein to self-illusion. The aspect of the world seemed changed; the trifle which I had picked up idly had proved to be a talisman of inestimable value, and had opened a door through which I caught glimpses of a strange and interesting transformation. Then came one who told me that the stone was not mine, but that it had been dropped by Lamarck, to whom it belonged rightfully, but who had lost it; whereon I said I cared not who was the owner, if only I might use it and enjoy it. Now, therefore, having polished it with what art and care one who is no jeweller could bestow upon it, I return it, as best I may, to its possessor.

What am I to think or say? That I tried to deceive others till I have fallen a victim to my own falsehood? Surely this is the most reasonable conclusion to arrive at. Or that I have really found Lamarck’s talisman, which had been for some time lost sight of?

Will the reader bid me wake with him to a world of chance and blindness? Or can I persuade him to dream with me of a more living faith than either he or I had as yet conceived as possible? As I have said, reason points remorselessly to an awakening, but faith and hope still beckon to the dream.