A similar impression, only even richer and more detailed, had been left upon him by a volume of Huxley's 'Lay Sermons.' The world of natural fact in its overpowering wealth and mystery was thus given back to him, as it were, under another aspect than that torturing intoxicating aspect of art—one that fortified and calmed. All his scientific curiosities which had been so long laid to sleep revived. His first returning joy came from a sense of the inexhaustibleness and infinity of nature.

But very soon this renewed interest in science began to have the bearing and to issue in the mental activities which, all unknown to himself, had been from the beginning in his destiny. He could not now read it for itself alone. That new ethical and spiritual susceptibility, into which agony and loss had become slowly transformed, dominated and absorbed all else. For some time, beside his scientific books, there lay others from a class not hitherto very congenial to him, that which contains the great examples in our day, outside the poets, of the poetical or imaginative treatment of ethics—Emerson, Carlyle, Ruskin. At an age when most young minds of intelligence amongst us are first seized by these English masters, he had been wandering in French paths. 'Sartor Resartus,' Emerson's 'Essays,' 'The Seven Lamps,' came to him now with an indescribable freshness and force. Nay, a too great force! We enjoy the great prophets of literature most when we have not yet lived enough to realise all they tell us. When David, wandering at night with Teufels-drockh through heaven and hell, felt at last the hard sobs rising in his throat, he suddenly put the book and others akin to it away from him. As with the poets so here. He must turn to something less eloquent—to paths of thought where truth shone with a drier and a calmer light.

But still the same problems! Since his Eden gates had closed upon him, he had been in the outer desert where man has wandered from the beginning, threatened with all the familiar phantoms, illusions, mist-voices of human thought. What was consciousness—knowledge—law? Was there any law—any knowledge—any I?

Naturally he had long ceased to find any final sustenance or pleasure in the Secularist literature, which had once convinced him so easily. Secularism up to a certain point, it began to seem to him, was a commonplace; beyond that point, a contradiction. If the race should ever take the counsel of the Secularists, or of that larger Positivist thought, of which English secularism is the popular reflection, the human intellect would be a poorer instrument with a narrower swing. So much was plain to him. For nothing can be more certain than that some of the finest powers and noblest work of the human mind have been developed by the struggle to know what the Secularist declares is neither knowable nor worth knowing.

Yet the histories of philosophy which he began to turn over were in truth no more fruitful to him than the talk of the Reasoner. They stimulated his powers of apprehension and analysis; and the great march of human debate from century to century touched his imagination. But in these summaries of the philosophical field his inmost life appropriated nothing. Once by a sort of reaction he fell upon Hume again, pining for the old intellectual clearness of impression, though it were a clearness of limit and negation. But he had hardly begun the 'Treatise' or the 'Essays' before his soul rose against them, crying for he knew not what, only that it was for nothing they could give.

Then by chance a little Life of Berkeley, and upon it an old edition of the works, fell into his hands. As he was turning over the leaves, the 'Alciphron' so struck him that he turned to the first page of the first volume, and evening after evening read the whole through with a devouring energy that never flagged. When it was over he was a different being. The mind had crystallised afresh.

It was his first serious grapple with the fundamental problems of knowledge. And, to a nature which had been so tossed and bruised in the great unregarding tide of things, which had felt itself the mere chattel of a callous universe, of no account or dignity either to gods or men, what strange exaltation there was in the general suggestion of Berkeley's thought! The mind, the source of all that is; the impressions on the senses, merely the speech of the Eternal Mind to ours, a Visual Language, whereof man's understanding is perpetually advancing, which has been indeed contrived for his education; man, naturally immortal, king of himself and of the senses, inalienably one—if he would but open his eyes and see—with all that is Divine, true, eternal: the soul that had been crushed by grief and self-contempt revived at the mere touch of these vast possibilities like a trampled plant. Not that it absorbed them yet, made them its own; but they made a healing stimulating atmosphere in which it seemed once more possible for it to grow into a true manhood. The spiritual hypothesis of things was for the first time presented in such a way as to take imaginative hold without exciting or harrowing the feelings; he saw the world reversed, in a pure light of thought, as Berkeley saw it, and all the horizon of things fell back.

Now—on this April afternoon—as the neighbourhood of Manchester was left behind, as the long woodclad valleys and unpolluted streams began to prophesy of Derbyshire and the Peak, David, his face pressed against the window, fell into a dream with Berkeley and with nature. Oh for knowledge! for verification! He began dimly and passionately to see before him a life devoted to thought—a life in which science after science should become the docile instrument of a mind still pressing on and on into the shadowy realm, till, in Berkeley's language, the darkness part, and it 'recover the lost region of light'!

But in the very midst of this overwhelming vision he said suddenly to himself:

'There is another way—another answer—Dora's way and Ancrum's.'