Nature does not make leaps.

It is unworthy of excellent men to lose hours like slaves in the labor of calculation which could be relegated to anyone else if machines were used.

Make me the the master of education, and I will undertake to change the world.

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.

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

If you have a clear idea of a soul, you will have a clear idea of a form; for it is of the same genus, though a different species.

We live in the best of all possible worlds