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Atomism- Democritus & Epicurus Essay, Research Paper

theme

Atomism:

Democritus

and

Epicurus

Philosophy 116

October 17, 1996

In the Atomists, we see pluralism taken as far as it could possibly go. We see Democritus and Epicurus divide all the world, as well

as the universe, into two categories; atoms and empty space. Everything else is merely thought to exist. The atoms are eternal, infinite in

size and number and they are moving through the empty space. There is no motion without empty space. Both Democritus and Epicurus

agreed that motion was impossible in a plenum, but it is here that their theories diverge. In the cause of the motion, we begin to see a

variety of opinions.

Both Democritus and Epicurus agreed that the ?qualitative world of sense perception arises from the motion of qualitatively neutral

atoms. They believe that the immense qualitative variety results from the ?jostling? of atoms…as they collide and bounce apart, and so,

constantly form new groupings? (Jones 84). They believe it to be a mechanical process occurring completely by chance. Furthermore,

although new groupings are constantly being formed, only the few that can survive are considered the ?right? combinations. These are

the combinations we recognize through our senses as being ?real?, although they are not. However, the way in which this complex

motion begins is a source of controversy and disagreement amongst the Atomists.

Democritus assumes that the atoms’ motion is perpetual. The atoms are never at rest. He presumes that their nature is to move, thereby

avoiding ?the problem of explaining the origin of the complex motion of atoms by simply affirming that it is in their nature to move

so? (Jones 85). He believes that atoms are born along with the whole universe in a vortex. The vortex is not an outside influence, but

rather the motion of the atoms themselves. He never accounts for the initiation of this motion. He simply states that it is an inherent

quality of the atoms themselves.

Epicurus, on the other hand, wanted to find a reasoning behind the initial movement of the atoms; to find the cause of the initial

collisions which start the creation process of the universe.

Through observation of objects falling ?down? within our limited perceptual space, Epicurus concluded that in the vastness of

infinite space there can be no ?down? since there is no point from which, or to which, an object (in this case an atom) is falling. Since

an objects? natural state seemed to be rest, Epicurus decided that it was not motion, but lack thereof, that is in a things’ true nature.

Therefore it is motion which requires an explanation (Jones 85).

Since it is agreed that the atoms must collide in order to form ?objects? that possess different qualities, the frequency of these

collisions must be infinitely large. How else can one account for the variety of objects recognized as ?normal??

The space in which the atoms are traveling is large beyond our every conception of size, and the atoms are small on the very same scale.

The probability of even two of these atoms colliding while they fall through the void is minute, if not non-existent.

Epicurus attempts to explain these collisions with his ?swerve? theory. In this, he holds there is an arbitrary, imperceptible swerve in

the straight ?falling? path of the atoms. Rather than contribute the collisions to the nature of the atoms themselves, he is attempting to

account for the frequency of collisions, and in effect increase the probability of two atoms colliding in infinite space.

There are many problems with this postulation. In effect, it is no better an argument than Democritus? nature theory. If we begin to

assume that events simply ?happen? arbitrarily, we do not gain any deeper insight than we do by saying that these events are in the

nature of things. Both of these positions lead us away from Atomism, since we are beginning to affirm the creation of something out of

nothing, a position to which the Atomists are diametrically opposed.

Modern philosophers like Dr. Jones, allow for Epicurus? swerve theory since ?given one swerve the system can develop, for it is

plausible to suppose that colliding atoms react in different ways. ?Some leap back at great space apart, others are thrust but a short way

from the blow?? (Jones 88). Ambiguous as it is, Epicurus could not logically come to another conclusion without violating his earlier

teachings.

Another point on which the Atomists disagree is the nature of qualitative differences such as weight and color. Although both

Democritus and Epicurus agree that atoms are without these qualities, their explanations of the phenomenon of their existence are quite

different.

Democritus, attempting to maintain the integrity of Atomistic physics, says that qualitative differences are, in fact, illusions. Neither

atoms, nor empty space possess these characteristics, therefore, Democritus concludes, they must be illusions. He supports this theory by

saying that the motion of the atoms that constitute the sensed object causes some of the atoms of that object to be flung into the path of

the atoms of the sensory organ, which in itself is a collection of atoms in motion. Thereby, the collision of the atoms which are moving

from the object being sensed set the atoms of the sense organ in motion. The motion perpetuates the illusion of qualitative variety. With

this argument, Democritus is able to account for the differences of opinion regarding an objects? qualities. What smells sweet to one, may

smell foul to another.

Antithetically, Epicurus attempts to explain sensory phenomenon in a clearer way. His explanation, however, again deviates from the

core declarations of Atomism. Epicurus agrees that atoms themselves have no qualitative differences. Nonetheless, he declares that groups

of atoms can develop a quality such as color. He theorized that the qualities we perceive are a by-product of the motion and collision

within atomic groups themselves. As the group moves, the qualities change. These qualities Epicurus called ??properties? not ?accidents?

of combinations or collections of atoms. A property is a characteristic that some entity necessarily has; an accident is a characteristic that

is temporary and transient. Thus, in accordance with these definitions, color is a property of atomic collections (for all such collection

have some color or other), and ?red? is an accident. Though a collection is necessarily colored, it is not necessarily “red? (Jones 89).

Therefore, Epicurus attributed the qualitative differences not to our perception, but to the atoms themselves. We come to an impass

here. We have already decided that all that exists are atoms and empty space. Epicurus then goes on to state that the qualities are not

illusions, yet they do not exist as part of the atoms, nor do they exist within the void. Where, then, are these qualities? Epicurus

ambiguously calls these qualities ?accompaniments? yet never explains how they can exist outside of reality and still be considered real.

Epicurus changed the doctrine of Democritus in many ways in an attempt to clarify some of the more questionable postulations.

Epicurus? theory is not necessarily superior, but certainly progressive. There is room for discourse on a variety of the Atomists? theories.

Since they are the first school of thought from which we have so much written record, there is bound to be divergence of opinion. The

areas I have discussed relate only the area of physics. Epicurus attempts to resolve some of the dilemmas Democritus leaves unresolved in

ethical and psychological dilemmas as well.

Of course, lingual and interpretive constraints play a part in all philosophical theory of the classical period. Yet in our “modern”

world, we rely heavily on the ideas set forth by these great thinkers. It would be foolish to take one concept as superior over another

because the scope of ideas given to us by these thinkers is too great a wealth to judge subjectively.

341


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