...it is the knowledge of necessary and eternal truths that distinguishes us from the mere animals and gives us Reason and the sciences, raising us t… - Gottfried Wilhelm Leibniz

And just as the same town, when looked at from different sides, appears quite different and is, as it were, multiplied in perspective, so also it happens that because of the infinite number of simple substances, it is as if there were as many different universes, which are however but different perspective representations of a single universe form the different point of view of each monad.

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

La tranquillité est un degré pour avancer vers la stupidité. . . Il faut toujours trouver quelque chose à faire, penser, projeter, s'intéresser, pour le public et pour le particulier, mais cela d'une manière qui nous réjouisse, si nos souhaits sont accomplis et ne nous chagrine point en cas qu'ils manquent.