Aristotle
384–322 BC · Ancient Greek
Progress in the arts and sciences is cumulative, each generation inheriting from its predecessors; but political life tends to cycle rather than advance toward any final goal.
Aristotle does not appear to hold a theory of progress in the modern sense, if by that is meant the expectation that history moves in a single direction toward a goal set for it in advance. He does, however, observe that inquiry accumulates. No investigator attains the truth adequately, and none fails entirely, so that what each contributes individually may be small while the union of all amasses a considerable amount. On this understanding, the policy Aristotle adopts of calling into council the opinions of his predecessors is itself a method of advance, undertaken so as to profit by whatever is sound in their suggestions and to avoid their errors.
The political writings describe a development which is likewise an advance, though not one projected into the future. The household supplies the needs of the day; several households form the village; several villages, when united in a community large enough to be nearly self-sufficing, constitute the state. Aristotle regards this sequence as a movement from smaller and weaker associations to larger and more powerful ones, and also as an advance toward the realization of man's political nature, since the domestic rule of the eldest gives way at last to the rule of statesmen over citizens. He does not imagine a political unity larger than the city-state, nor does he measure the goodness of existing institutions by their devotion to further improvement.
Two considerations qualify what Aristotle allows to accumulation. The first concerns time. If the world is eternal, then probably each art and each science has often been developed as far as possible and has again perished, so that what appears to be advance may be recovery. The second concerns the difference between the theoretical and the practical sciences. Demonstrative knowledge admits of transmission because its objects are necessary; but prudence deals with contingent matters, and what serves in Athens may not serve in Sparta. Political experience may deepen judgment without converging on a final answer. Whether historical change is cyclical or directional is treated more fully under the idea of History.
"The investigation of truth is in one way hard, in another easy. An indication of this is found in the fact that no one is able to attain it adequately, while no one fails entirely."
"Men of experience know that the thing is so, but do not know why, while the others know the 'why' and the cause."
Aristotle's separation of intellectual accumulation from any general betterment of the human condition supplies terms which later writers accept or contest. Those who look for progress in the nature of man, such as Rousseau and Kant, must dispose of his view that human nature is fixed; those who look for it in institutions, such as Mill and Marx, must decide whether constitutions cycle or ascend. The question whether man is capable of indefinite improvement is considered in relation to the idea of Man, and the fortunes of the intellectual tradition he founded are discussed by Bacon, Descartes, and Pascal under the head of method.
Key work: Metaphysics