Every present state of a simple substance is the natural consequence of its preceding state, in such a way that its present is big with its future.

It is a good thing to proceed in order and to establish propositions. This is the way to gain ground and to progress with certainty.

There is a certain destiny of everything, regulated by the foreknowledge and providence of God in His works.

There is nothing without reason.

..This is why the ultimate reason of things must lie in a necessary substance, in which the differentiation of the changes only exists eminently as in their source; and this is what we call God.

Justice is charity in accordance with wisdom.

I do not believe that a world without evil, preferable in order to ours, is possible; otherwise it would have been preferred. It is necessary to believe that the mixture of evil has produced the greatest possible good: otherwise the evil would not have been permitted. The combination of all the tendencies to the good has produced the best; but as there are goods that are incompatible together, this combination and this result can introduce the destruction of some good, and as a result some evil.