In the early chapters we noted the rise of an independent science, and the collapse of the medieval world view with which popular religious notions were associated so closely, that many conservative thinkers expected to see both involved in a common ruin. Science seemed to threaten the existence of a religion bound up with conceptions of space and of force which were being brought into discredit.

These misgivings turned out, however, to be ill-founded. Certain advantages, no doubt, of simplicity and definiteness, which had belonged to the old notions, had been irrecoverably lost; but thinkers like Giordano Bruno showed that the conception of an infinite universe was by no means hostile to religion; but that, on the contrary, it might be a conception of the highest spiritual value. Such are the sentiments expressed in some sonnets which precede Bruno's dialogue "On the Infinite Universe."

"It seemed to Bruno as if he had never breathed freely until the limits of the universe had been extended to infinity, and the fixed spheres had disappeared. No longer now was there a limit to the flight of the spirit, no 'so far and no further'; the narrow prison in which the old beliefs had confined men's spirits had now to open its gates and let in the pure air of a new life."[78]

The scientific did not seem to him incompatible with a fundamentally religious conception of the world, at least for those who were not afraid "to take ship upon the seas of the infinite."

Dangers of the "Mechanical View."—Thus it was not science that was hostile to religion. This was not the case until science began to be associated with a certain fairly definite philosophy of a mechanistic, and later of a materialist, description. Religion could not have survived the final establishment of such a philosophy as this, for the indispensable element in a religious attitude of life is the idea that somehow there lies behind things a power or essence that has something in common with our own natures—something that can, without an abuse of language, be called personal. Any philosophy that rules out this idea creates an atmosphere in which religion cannot breathe.

And it was just this atmosphere that the mechanistic view, unless amplified by considerations of another kind (as it was e.g. in the case of Spinoza) tended to create.

The "Mechanical View" Never Unchallenged.—And with regard to this mechanistic philosophy, we have to observe that it never seems to have commended itself, as a final and complete solution, to the best minds. In the seventeenth century, it will be remembered, the mechanical conception was transcended (though in entirely different ways) by Spinoza and by Leibniz, and the religious consciousness of the age, in the person of Pascal, protested against it.

And although, during the eighteenth century, this philosophy persisted, and was considerably reinforced (with the help of further discoveries in the realm of physics) by the school of Holbach and Diderot, yet it had still to face the radical criticism of Kant. This criticism, as we shall remember, indicated that the mechanical view is a way in which the human mind—owing to its constitution—regards phenomena. If it is to understand them, the human mind cannot help viewing them in that fashion; it must subject things to the mould in which all its thought is cast. Mechanism is the medium through which the mind understands phenomena. It belongs not to the things in themselves, but to our way of understanding them. And attached to this radical criticism of mechanical notions, was an idealistic philosophy of the most genuinely religious and spiritual character. Kantian idealism is one of those contributions to human thought behind which we shall not again regress. It is a phenomenon of incalculable value and importance.

The immediate results of Kant's critical idealism was a luxuriant growth of a spiritual type of philosophy upon the ground he had cleared and prepared. Romanticism may be regarded as a revolt of those sides of human nature upon which the tyranny of mechanism pressed hardest—religion, speculation, poetry, music, art. "You may expel nature with a pitchfork, but she persists in returning." The Horatian remark is true also of the human mind; you may try to weed out religion and poetry, but your success will only be temporary; for nature herself is more persistent than the most earnest of materialists and (what is more) she outlives him.

And with regard to the materialist or mechanistic view, it is highly interesting to note that its greatest attraction has consisted in something which, strictly speaking, is not its own property. In the eighteenth century in France, and in the nineteenth century in Germany and England, the popularity of this view was derived from its altogether illegitimate association with a high moral and social idealism, which (it is only too evident) had been borrowed—without sufficient acknowledgment—from the Christian tradition. The rather self-conscious atheism (for instance) of Shelley or Byron—which they had presumably derived from Diderot and his contemporaries—was less a denial of God than an affirmation of the rights of humanity. This generous philosophy of revolt from contemporary tyranny and pharisaism is atheistic only in name. The callous and cynical powers, both political and ecclesiastical, that were the object of their bitter attacks were the embodiments of atheism, for "He alone is the true atheist to whom the predicates of the Divine Being, e.g. love, wisdom, justice, are nothing."[79]