The answer of Cousin to the first question is that we prove reason to be in possession of universal and necessary principles by the analysis of the contents of consciousness, that is, by psychological analysis. The phenomena of consciousness, in their primitive condition, are necessarily complex, concrete, and particular. All our primary ideas are complex ideas, for the evident reason that all, or nearly all, our faculties enter at once into exercise; their simultaneous action giving us, at the same time, a certain number of ideas connected with each other, and forming a whole. For example, the idea of the exterior world, which is given us so quickly, is a complex idea, which contains a number of ideas. There is the idea of the secondary qualities of exterior objects; there is the idea of the primary qualities; there is the idea of the permanent reality of something to which you refer these qualities, to wit, matter; there is the idea of space which contains bodies; there is the idea of time in which movements are effected. All these ideas are acquired simultaneously, or nearly simultaneously, and together form one complex idea. The application of analysis to this complex phenomenon clearly reveals that there are simple ideas, beliefs, principles in the mind which can not have been derived from sense and experience, which sense and experience do not account for, and which are the suggestions of reason alone: the idea of the _Infinite_, the _Perfect_, the _Eternal_; the true, the beautiful, the good; the principle of causality, of substance, of unity, of intentionality; the principle of duty, of obligation, of accountability, of retribution. These principles, in their natural and regular development, carry us beyond the limits of consciousness, and reveal to us a world of real being beyond the world of sense. They carry us up to an absolute Being, the fountain of all existence--a living, personal, righteous God--the author, the sustainer, and ruler of the universe. The proof that these principles are absolute, and possessed of absolute authority, is drawn, first, from the _impersonality of reason_, or, rather, the impersonality of the ideas, principles, or truths of reason.