There are two famous labyrinths where our reason very often goes astray. One concerns the great question of the free and the necessary, above all in the production and the origin of Evil. The other consists in the discussion of continuity, and of the indivisibles which appear to be the elements thereof, and where the consideration of the infinite must enter in.

Natural religion itself, seems to decay very much. Many will have human souls to be material: others make God himself a corporeal being.

Imaginary numbers are a fine and wonderful refuge of the divine spirit almost an amphibian between being and non-being.

If we could sufficiently understand the order of the universe, we should find that it exceeds all the desires of the wisest men, and that it is impossible to make it better than it is, not only as a whole and in general but also for ourselves in particular, if we are attached, as we ought to be, to the Author of all, not only as to the architect and efficient cause of our being, but as to our master and to the final cause, which ought to be the whole aim of our will, and which can alone make our happiness.

Reality cannot be found except in One single source, because of the interconnection of all things with one another.

Our reasonings are grounded upon two great principles, that of contradiction, in virtue of which we judge false that which involves a contradiction, and true that which is opposed or contradictory to the false.

There is no way in which a simple substance could begin in the course of nature, since it cannot be formed by means of compounding.