To conduct the pleadings--still more to pronounce the judgment--there, other habits of mind are needed than are required in the museum and the observatory; and the history of knowledge, past and present, abounds with instances of men who, with the highest merit in particular walks of science, have combined a curious incompetency of survey over the whole. Hence, very few natural philosophers, however eminent for great discoveries and dreaded by the priesthood of their day, have made any deep and durable impression on the religious conception of the universe, as the product and expression of an Infinite Mind; and in tracing the eras of human faith, the deep thinker comes more prominently into view than the skilful interrogator of nature. In the history of religion, Plato is a greater figure than Archimedes; Spinoza than Newton; Hume and Kant than Volta and La Place; even Thomas Carlyle than Justus Liebig. Our picture indeed of the system of things is immensely enlarged, both in space and duration, by the progress of descriptive science; and the grouping of its objects and events is materially changed. But the altered scene carries with it the same expression to the soul; speaks the same language as to its origin; renews its ancient glance with an auguster beauty; and, in spite of all dynamic theories, reproduces the very modes of faith and doubt which belonged to the age both of the old Organon and of the new. The ultimate problem of all philosophy and all religion is this: "How are we to conceive aright the origin and first principle of things?" The answers, it has been contended by a living author of distinguished merit, are necessarily reducible to two, between which all systems are divided, and on the decision of whose controversy, all antagonist speculations would lay down their arms. "In the beginning was FORCE," says one class of thinkers; "force, singular or plural, splitting into opposites, standing off into polarities, ramifying into attractions and repulsions, heat and magnetism, and climbing through the stages of physical, vital, animal, to the mental life itself." "On the contrary," says the other class, "in the beginning was THOUGHT; and only in the necessary evolution of its eternal ideas into expression does force arise,--self-realizing thought declaring itself in the types of being and the laws of phenomena." We need hardly say, that the former of these two notions coalesces with the creed of Atheism, and is most frequently met with upon the path of the physical sciences, while the latter is favored by the mathematical and metaphysical, and gives the essence of Pantheism. Each of them has insurmountable difficulties, with which it is successfully taunted by the other. Start from blind force; and how, by any spinning from that solitary centre, are we ever to arrive at the seeing intellect? Can the lower create the higher, and the unconscious enable us to think? Start from pure thinking, and how then can you get any force for the