Hossein Jorjani
First publication: 2026 – 06 – 30
The appearance of paired opposites in Bacon’s examples (“hot/cold,” “white/black”) should not be taken as evidence of a dualistic worldview. These pairs were part of the inherited scientific and rhetorical vocabulary of his time—convenient, vivid, and pedagogically familiar—but not philosophically binding. Bacon’s underlying physics was continuist, not dualist: he explained such sensible qualities as degrees or modes of one underlying process (for example, the motion of particles in the case of heat and cold). The pairing of opposites served to illustrate extremes within a scale of variation, not to imply two distinct principles in nature. His reliance on such examples, therefore, reveals rhetorical convention rather than metaphysical conviction—a conventional mode of illustration, not a structural commitment to dualism.
The situation is more complex in Plato and Aristotle, whose uses of oppositional or paired terms arose from distinct methodological contexts. Plato employed dichotomies as instruments of diairesis—the dialectical method of dividing concepts into species by successive contrasts. This was a logical procedure, not a metaphysical assertion of dual substances. Aristotle, for his part, treated contraries (ta enantia) as poles of change within a single substratum: hot and cold, for instance, existed not as independent realities but as endpoints in a continuum of transformation. In both thinkers, the analytic use of opposition did not entail an ontological dualism.
At the same time, both Plato’s dialectical method and Aristotle’s analysis of contraries presupposed that genuine knowledge required the identification of limits or contrasts—a structure of thought that, when transferred uncritically, could easily harden into a dualistic habit. Later traditions of dialectical reasoning, culminating in Hegel, often reinforced this pattern by transforming a heuristic device into a comprehensive metaphysical schema. To think dialectically in such a framework was to risk seeing oppositions where only gradations exist. Bacon’s Novum Organum represents a deliberate effort to avoid this danger. He retained the inherited linguistic pairs but dissolved their ontological rigidity, insisting that nature operates through continuous variation rather than through fixed contraries.