Gottfried Wilhelm Leibniz — "Nature makes no leaps."

"Each simple substance or Monad is a mirror of the universe according to its point of view."

"There are two labyrinths of the human mind: one concerns the composition of the continuum, and the other the nature of freedom, and both spring from the same source—the infinite."

"The art of discovering the causes of phenomena, or true hypothesis, is like the art of deciphering, in which an ingenious conjecture often greatly shortens the road."

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

"Time is the order of successive phenomena."