Music is the pleasure the human mind experiences from counting without being aware that it is counting.

Thus God alone is the primary Unity, or original simple substance, from which all monads, created and derived, are produced.

But it is the knowledge of necessary and eternal truths which distinguishes us from mere animals, and gives us reason and the sciences, raising us to knowledge of ourselves and God. It is this in us which we call the rational soul or mind.

We may say, that not only the soul (the mirror of an indestructible universe) is indestructible, but also the animal itself is, although its mechanism is frequently destroyed in parts.

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

Nothing is necessitated whose opposite is possible.

To love is to find pleasure in the happiness of others.