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

The words 'Here you can find perfect peace' can be written only over the gates of a cemetery.

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.

Each portion of matter may be conceived of as a garden full of plants, and as a pond full of fishes. But each branch of the plant, each member of the animal, each drop of its humors, is also such a garden or such a pond.

I am so in favor of the actual infinite that instead of admitting that Nature abhors it, as is commonly said, I hold that Nature makes frequent use of it everywhere, in order to show more effectively the perfections of its Author.

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.

The present is big with the future, the future might be read in the past, the distant is expressed in the near.