I have said more than once, that I hold space to be something purely relative, as time; an order of coexistences, as time is an order of successions. - Gottfried Wilhelm Leibniz

I don't really eliminate body, but reduce it to what it is. For I show that corporeal mass, which is thought to have something over and above simple substances, is not a substance, but a phenomenon resulting from simple substances, which alone have unity and absolute reality.

If you could blow the brain up to the size of a mill and walk about inside, you would not find consciousness.

Now, as there is an infinity of possible universes in the Ideas of God, and as only one of them can exist, there must be a sufficient reason for God's choice, which determines him toward one rather than another. And this reason can be found only in the fitness, or the degrees of perfection, that these worlds contain, since each possible thing has the right to claim existence in proportion to the perfection it involves.