Every substance is as a world apart, independent of everything else except God.

Everything that is possible demands to exist.

To love is to be delighted by the happiness of someone, or to experience pleasure upon the happiness of another. I define this as true love.

Only geometry can hand us the thread [which will lead us through] the labyrinth of the continuum's composition, the maximum and the minimum, the infinitesimal and the infinite; and no one will arrive at a truly solid metaphysic except he who has passed through this [labyrinth].

Theologian: But what is to love? Philosopher: To be delighted by the happiness of another.