“Just as the electric incandescent light and the tallow-candle may exist side by side, and as each of them may serve its purpose in its proper place, so there exist also side by side various physical and metaphysical ideas and fundamental notions: the scientist and the philosopher and the old grandmother in her cottage on the remote mountain-side, cannot think of the world in the same way” (Ethik II, 240-244). But the argument, if it should prove anything, must be formulated thus: “As the incandescent light can at the same time be a tallow-candle, just so can two different and opposite views about one and the same thing be at the same time both right.” Thus, thanks to the science of modern subjectivism, every fixed and unchangeable truth, especially in the sphere of philosophy and religion, is removed, and with it also every barrier to freedom of thought in science as well as elsewhere. The human intellect in its autonomous self-consciousness may not only reject those truths which are proposed by revelation or the Church; it may not only experience its views of religion and the world by giving free activity to its feelings, it also knows that to be no longer satisfied with the old truths means to be progressive. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Above we have sketched the deeper-lying thoughts on which the liberal freedom of science is based; it is the humanitarian view of the world with its emancipation of man, and autonomous scepticism in thought, joined to that sceptical disregard of truth which once the representative of expiring pagan antiquity comprised in the words: _Quid est veritas?_ Now we also understand better the liberal science which often claims the privilege of being “the” science, and which only too often likes to put down as unwarranted and inferior every other science that does not pursue its investigations in the same way. We understand its methods of thought in philosophy and religion, for which it claims an exclusive privilege; we can also form a judgment of its claim to be the leader of humanity in place of faith. No doubt there are many who are flirting with this freedom without accepting its principles entirely. They do not reason out the thing to the end, they argue against the invasion of the Church into the field of science, and point to _Galileo_; they denounce Index and Syllabus, and then believe they have therewith exhausted the meaning of freedom of science. That the real matter in question is a view of the world diametrically opposed to the Christian view, that a changed theory of cognition is underlying it, is by many but insufficiently realized.