This last difficulty remains my chiefest apprehension still. Neither in the Essay itself, nor yet in the additions made to it, have I introduced any one point which it seemed permissible to omit with justice to the real issue. Yet I dare not hope that many eyes, except those of the practised student, will easily perceive how germane to that issue are several among the subjects discussed. One class of thinkers will, however, welcome the whole of these inquiries; and this class contains the earnest men for whom above all others I have written.

The amount of MS. sent to the Registrar was much less in compass than the present volume. But Notes and Illustrations were intended from the first, and, had there existed a doubt as to their propriety, it would have been at once removed by the counsel of competent advisers. The risks attaching to the Essay in its smaller shape were said to be two: (1) An evident appearance of unwilling brevity, and (2) a possible charge of novel thought, bordering on paradox. In attempting to overcome these obstacles to favourable attention, I have pursued the following course:—

The text of the Essay is printed as originally written, with only a very few verbal changes for the sake of improved clearness. A number of foot-notes belonging to its first draft, remain distinguished by the ordinary marks of reference.[2]

In reperusing the text, I set myself to consider how many sympathisers I could find. The best answer to any possible charge of Paradox, seemed to be a roll-call of thinkers who, for their own purposes, have asserted positions more or less approaching those I had attempted to maintain. The number of auxiliaries I have thus succeeded in assembling, is, I confess, a matter of considerable self-gratulation. Yet, I do not appeal to such opinions as authorities, in any other sense than so far forth as they are the decisions of experts in different provinces of knowledge. In whatever concerns his own department, each scientific worker has assuredly a right to be heard. The weight of confirmation thus given to my own previous results, is enhanced by the fact that most of the authors cited, pursued different objects from mine, and wrote without any bias favourable to Natural Theology. Respecting more than one of them, I feel inclined to repeat the ancient adage, "My antagonist has become my helper."

The Quotations themselves have been divided into separate classes. The greatest number illustrate particular expressions, sentences, and paragraphs. These are arranged as foot-notes on the several pages of Text, and are referred to by the small letters of the alphabet. Others, explaining or confirming principles, of general importance to the argument, have been distinguished by capital letters, and placed at the end of the chapters to which they appertain. With this latter division are classed a third set of extracts, which aim at expounding certain special thoughts, and opening out to the real student useful paths of prolonged investigation.

One circumstance connected with the Additional Notes, is alluded to at the bottom of page 27. Originally, I had made only a few citations from thoroughly sceptical writers. But, against this plan were urged the following objections. (1.) In arguing questions of all kinds, definite points are present to the mind of every disputant, and against them he directs his argument. His expressions are always antithetic to these points, and should they be left in the shadow, all antithesis is lost, and the real force of the argument obscured. Sometimes it is even mistaken;—a truth which may be illustrated by comparing the positions of great leaders in politics or theology with the positions occupied by their disciples. The former always speak by way of antithesis,—the latter seldom construe their leaders' words antithetically. Hence, the disciples never fail to outrun their teachers. Antithesis is in truth a verbal counterpoise; and where it disappears, balance is not seldom overthrown. Thus, said my advisers, your reasoning must necessarily suffer by a general loss of clear definition. Again, (2) they continued;—Since the time when you began your Essay, Scepticism in general, Materialism and Mechanism in particular, or, to speak briefly, the various denials of Theism, have ceased to be subjects on which reticence is feasible. An Address of Mr. Gladstone's delivered in a room, and spoken to a company of youths, soon became world-wide; it has been, and will be read, quoted, and commented on, wheresoever the English language is understood. One daily newspaper attractively written, devotes many of its clever pages to making known in a forensic manner the many different phases of sceptical opinion. And some religious journals explain, with complete freedom, what the disbeliefs are which they consider most reprehensible. Reticence, therefore, is simply thrown away. Some may desire to see it practised towards young people, but such "economizers" are, in effect, theoretical. They forget that the Battle of Thought comes to educated young minds along with the Battle of Life; and woe to the unprepared either way! They become, one and all, bewildered.

These reasons have satisfied my own judgment up to a certain point. I have consequently added such quotations from sceptical authors, as seemed desirable for the purpose of limiting my several positions with antithetic distinctness; a kind of definition which I admit to be the most distinct of all. And to these extracts I have appended some others, plainly expressing the conclusions which the opponents of Theism ought to reach, provided their views are carried out with fairness and consistency. Conclusions of this kind can only be obtained from Sceptics themselves. In what are called "logical consequences" put by an author into the mouth of his adversaries, I, for one, have no confidence whatever. To draw such inferences and glory in their wrong-headedness, is like inventing both sides of a controversial dialogue, defeating the party destined to defeat, and then laying claim to a philosophic victory. Or, we may take the reverse supposition. A writer is too honest for such ill-gotten triumph. This same quality of candour will, most probably, induce him to put the case he opposes in a light so advantageous, as to throw fresh doubt upon his own.

If, then, I have erred in over-quoting upon these accounts, I cannot plead that the error is committed unadvisedly.

It seems right to say, that, in mustering auxiliaries, I found the best friends to my argument were the most truly philosophic Biologists. It would indeed be strange and sad, should the genuine leaders of thought in any among the Natural Sciences be reckoned real adversaries of Natural Theology. But, in order to convey an exact impression to the reader's mind, I must beg him to peruse, in connection with this statement, the note on Materialism appended to Chapter III.; and, more particularly, its concluding pages. Towards the hybrid class mentioned p. 246, I cannot help entertaining a sentiment the reverse of complimentary.

To several distinguished persons who have bestowed upon this undertaking the aids of advice or sympathy, I offer a tribute of respectful gratitude. In one particular they will, I hope, think their kindness not utterly thrown away; since, unlike many recipients of good counsel, I have followed the opinions given me. It is with a deep solemnity of emotion, I thus venture on recording my heartfelt indebtedness. One, who was glad that words of his had helped me, now adorns no longer the noblest of assemblies by his eloquence. To my personal sorrow, he will not cast a glance on the pages over which his favour threw a ray of encouragement.