A New System
The following is an outline of a philosophical text which is provided with no claim with regard to it's accuracy or neutrality. Use freely, but at your own risk.
Overview
Leibniz’s famous 1695 essay (in long form: A new system of the nature and communication of substances, and also of the union that exists between the soul and the body) was the introduction to a broad European readership of his original metaphysical ideas (many of which he had come to a decade earlier).
Outline
- This paper is published in a scholarly journal - it is not written in the popular style.
- Physics needs more than the concept of matter (”extended mass”), it also needs an operative concept of force.
- At first, Leibniz favored an idea of matter and empty space (because it gives us a physics we can always “picture”).
- The matter itself, he realized, doesn’t yield any real unities. Because matter, by its nature is always divisible into smaller matter, and thus never a unity per se.
- Likewise, he thinks, geometrical points can’t yield existential unities, because points aren’t real extant stuff.
- In order to get a unity (a thing that’s deep down really just one thing), he needed a “real and living” point.
- These points, he realized, must be something like our idea of a soul - must be a force - that is, like appetition (desire and its low-grade analogs) and sentiment (belief, feeling).
- We can use these substantial forms to solve general (not particular) problems in natural science. Indeed, they are what Aristotle calls ‘first entelechies’.
- Leibniz calls them ‘basic forces’ for intelligibility, and because they involve actuality and activeness.
- These forms and souls had to be indivisible.
- However, since this is the case, it also had to be the case that they were created and annihillated (rather than assembled/dismantled).
- This means that all substances were created with the universe, survive its duration, and will die with it.
- There are at least two types of simple substances, though: rational souls (minds) and other souls. Compared with the latter, our minds are “like little Gods.”
- So, where God has imposed an order on matter, minds have special laws that raise them above that, or that matter works for minds (the punishment of the wicked, and the happiness of the good).
- Since we are saying that souls (rather than atoms) last forever, one might be disposed to imagine that they pass from body to body. Because of microscopic observation, Leibniz is rather inclined to conclude that the animal simply begins and then just adds on other bits to itself in growth and development.
- But what about the end of the animal, then? Since it is unreasonable to assume that souls just occupy a chaotic material station after death, the only tenable position is that not merely the soul but the animal is conserved (albeit in much smaller form) after death.
- This entails that rather than a transporting of souls, there is merely a continuous transforming, and that there is no death in a metaphysical sense.
- God, however, has provided for rational souls so well that nothing can ever make them lose the “moral qualities of their personhood”.
- Thus it can be said that everything tends to not merely the perfection of the universe in general, but of these creatures in particular (who are destined to reach such a high degree of happiness that it affects the universe as a whole!)
- Leibniz now attributes something like this view (that things don’t die, just appear and disappear) to Hippocrates, Parmenides, and Melissus.
- The moderns take there to only be a quantitative difference - i.e. large and small - between the machines of nature and of humans, rather than a qualitative one. This is too far.
- For Leibniz the machines of nature and of humans differ not only by degree, but in kind. He isolates three differences:
- Nature’s machines are so well equipped as to never succumb to accidental destruction.
- Nature’s machines have a truly infinite number of parts.
- Nature’s machines remain the same, although they are (beautiful here:) “folded together differently.”
- For Leibniz the machines of nature and of humans differ not only by degree, but in kind. He isolates three differences:
- Furthermore, the soul is a true unity (which is what we call the ‘I’). Where human machines are more like armies of parts, and thus require unified parts somewhere.
- Since these unified parts clearly can’t be material (which for Leibniz is infinite in its compositional complexity). Rather we need something like “atoms of substance” (contra atoms of matter).
- These atoms of substance are:
- the sources of activity
- the basic reason for the composition of things (the explanation for material unities)
- the ultimate elements in the analysis of substantial things
- They might be called metaphysical points. They are not merely mathematical points because they have something alive in them (a kind of perception).
- So where material points seem indivisible but are not, and mathematical points are indivisible but are not things, only forms or souls/metaphysical points are both exact and real.
- This generates a problem viz the soul’s communion with the body. The Cartesian/Malebranchean position is that senses and the motor behind actions is that God manually coordinates our activity/sensation with our volition, as well as causality in general.
- Leibniz thinks that this is motivated right (its negative argument is good), but that its positive argument is wrong.
- In other words, it’s right that one created thing has no real influence on another and that all things are continually produced by the power of God, but relying on a deus ex machina is ostensibly the same as relying on miracles.
- Leibniz wants to explain how God coordinates causality.
- Leibniz thinks that this happens because God initially created each soul to be spontaneous (aka. not causally affected by other monads), but meanwhile to just be in perfect conformity to things outside it.
- This entails that the internal perceptions of our souls are purely mental phenomena. The constitution of the soul “gives the substance a representative nature”: or, each substance reflects the entire universe in itself according to its particular point of view.
- Thus, the interaction of the body and the soul works by means of a universal spontaneous coordination that is the property of every substance.
- This theory has the charm of explaining how the soul resides in the body: e.g. in the same way that a unity is in a multitude.
- Why couldn’t souls be like formal, free automatons? (This question will turn out not to answer itself.)
- Since the soul represents the entire universe (although with differing degrees of clarity), conversely, the body is adpated to the soul, and this gives us the sense of causal mind-body interaction.
- It also has the advantage of showing that we are not susceptible to any kind of material causal determinism.
- Every mind is like a world apart: self-sufficient, independent of every other created thing, involving the infinite, and expressing the universe.
- It is also meant to be another proof of God that so many interacting substances do so harmoniously, a fact which implies that they share a common cause.
- This system finally also allows us to understand “x acted on y and z” as “A change occurred in x which intelligibly explains changes in y and z, in such a way that we can conclude that when God was decreeing what substances were to exist he chose y and z so as to fit with the already chosen x.”
- That is, if matter is not substance, then something like this story is the only coherent way to explain the appearance of material causality.
- This will prove useful in physics, despite its metaphysical character.