There is a world of created beings - living things, animals, entelechies, and souls - in the least part of matter.... Thus there is nothing waste, nothing sterile, nothing dead in the universe; no chaos, no confusions, save in appearance.
Gottfried Leibniz[Alternate translation:] The Divine Spirit found a sublime outlet in that wonder of analysis, that portent of the ideal world, that amphibian between being and not-being, which we call the imaginary root of negative unity.
Gottfried LeibnizI have said more than once, that I hold space to be something purely relative, as time; an order of coexistences, as time is an order of successions.
Gottfried Leibniz