"imaginary numbers are a fine and wonderful resource of the divine intellect, almost an amphibian between being and non-being."

"We live in the best of all possible worlds."

"The ultimate reason of things must lie in a necessary substance, in which the detail of changes exists only eminently, as in its source; and this is what we call God."

"The mind is not only capable of knowing [innate ideas], but further of finding them in itself; and if it had only the simple capacity to receive knowledge…it would not be the source of necessary truth…"

"There is a world of creatures, living beings, animals, entelechies, souls, in the least part of matter."