On Necessary Being and the Cosmological Argument
1. The Problem
One of the most fundamental questions in philosophy is: Why is there
something rather than nothing? This question is difficult because it asks
not merely about particular things in the world, but about the existence of being
itself. If individual things exist, we must ask whether their existence can
be explained, or whether existence is simply a brute fact with no explanation.
The problem becomes sharper when we consider that many things we observe
appear to be contingent—that is, they depend on something else for their
existence. Human beings, for example, come into existence through their
parents, and those parents came from their own parents. This raises a deeper
question: Can this chain of contingent beings continue infinitely, or must
there be something that exists necessarily and explains the existence of
everything else?
2. My Thesis
I argue that there must be a necessary being that has always existed.
This is because being cannot come from non-being, and therefore the existence
of contingent beings requires an ultimate explanation grounded in a being that
exists necessarily.
3. Reason for My Position
A key principle guiding this argument is the Principle of Sufficient
Reason (PSR). As described by Peter Van Inwagen, PSR states that for every
truth or state of affairs, there must be a sufficient reason why it is so and
not otherwise. Similarly, Gottfried Wilhelm Leibniz formulated the principle by
asserting that nothing happens without a sufficient reason that explains why it
is thus rather than otherwise.
If PSR is correct, then the fact that there are contingent beings must
have an explanation. Contingent beings, by definition, do not contain the
reason for their existence within themselves. Therefore, their explanation must
lie outside themselves.
At this point, Aristotelian logic provides further clarification.
Aristotle identified three fundamental laws of thought:
- The law of identity (A is A)
- The law of non-contradiction (A
cannot be both A and not A)
- The law of excluded middle (A
must be either A or not A)
These laws imply that being cannot arise from non-being, because that
would violate the law of non-contradiction. To say that something comes from
nothing is to say that non-being produces being, which is logically incoherent.
Given these principles, we can follow the structure of the cosmological
argument. We begin with the undeniable fact that there are contingent beings.
According to PSR, this fact must have an explanation. One possible explanation,
as Van Inwagen suggests, is that something necessarily existent is responsible
for the existence of contingent beings.
This necessary being would not depend on anything else for its existence.
Instead, it would exist by its own nature and serve as the ultimate explanation
for all contingent beings.
An example can help illustrate this point. A human being is contingent
because their existence depends on their parents. Those parents are also
contingent, as they depend on prior causes. However, this chain of dependence
cannot regress infinitely without explanation. If every being required a prior
cause, the existence of the entire chain would remain unexplained. Therefore,
there must be a first, necessary being that grounds the existence of all
others.
This necessary being can be understood as the Creator of all things,
existing eternally and independently.
4. Counterargument
One possible objection to this argument is that the Principle of
Sufficient Reason may not apply universally. Some philosophers argue that the
existence of the universe could be a brute fact, meaning that it exists without
any explanation. According to this view, there is no need to posit a necessary
being; the chain of contingent beings may simply exist as a whole without
requiring further justification.
Additionally, one might argue that an infinite regress of contingent
causes is possible. If each contingent being is explained by a prior one, then
perhaps no ultimate explanation is needed beyond the chain itself.
5. Response to the Counterargument
While the idea of brute facts may seem appealing, it ultimately
undermines rational explanation. The Principle of Sufficient Reason is not just
a metaphysical assumption; it is a foundational principle of reasoning itself.
If we abandon PSR, then we give up the expectation that things can be explained
at all. This would make rational inquiry and philosophical investigation
impossible.
Furthermore, an infinite regress of contingent beings does not provide a
sufficient explanation. Even if every individual being in the chain is
explained by a prior cause, the existence of the entire chain would still lack
an explanation. The question would remain: Why does this chain exist at all
rather than not exist?
Therefore, the only satisfactory explanation is that there exists a necessary
being that does not depend on anything else and serves as the ultimate ground
of all existence.
6. Conclusion
In conclusion, the existence of contingent beings requires an
explanation, and the Principle of Sufficient Reason demands that such an
explanation be sufficient. Since being cannot come from non-being without
violating the law of non-contradiction, there must always have been something
that exists.
This leads to the conclusion that there is a necessary being that exists
eternally and is responsible for the existence of all contingent beings. This
necessary being can be understood as the Creator of all things and the ultimate
foundation of reality.
Sources
logic. (2018). In The Columbia Encyclopedia (8th ed.). Columbia
University Press.
Van Inwagen, P. (2015). Metaphysics (4th ed.). Westview Press.
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