Democritus is generally understood to have anticipated the seventeenthcentury distinction between primary and secondary qualities. I argue that this is not the case, and that instead for Democritus all sensible qualities are conventional.

Epicurus' "On Nature" 25 is the key text for anti-reductionist interpretations of Epicurus' philosophy of mind. In it, Epicurus is trying to argue against those, like Democritus, who say that everything occurs 'of necessity,' and in the course of this argument, he says many things that appear to conflict with an Identity Theory of Mind and with causal determinism. In this paper, I engage in a close reading of this text in order to show that it does not contain any (...) clear statement of either a doctrine of radically emergent properties and "downwards causation" (contra David Sedley) or of the non-reducibility of the mental to the atomic (contra Julia Annas). I argue that Epicurus' main thesis is that we cannot consistently argue against our conception of ourselves as rational agents, and that it is our reason that allows us to reform our characters, control our actions, and blame and praise one another appropriately. The way that Epicurus describes the development and causal efficacy of reason in "On Nature" book 25 is consistent both with reductionism and (more surprisingly) with causal determinism. (shrink)

The research is a comparative study of the atomic theories of Kanada and Democritus. Because of their pluralistic tendencies, emphasis on causality, their materialistic account of sense knowledge, and their attempt to explain the physical system by means of reduction to the configuration of its constitutive elements, both philosophers present an epistemological base that could accommodate scientific inquiry. Notwithstanding the early and expansive beginning of Indian atomism, modern scientific atomic theory traces its origin to Democritus. Through cross-cultural critical engagement of (...) parallel ideas between Kanada and Democritus, the paper aims to discover the common problems that they dealt with in order to further our understanding of the early history of atomic theory, to evaluate the relative merits and limitations of their proposed solutions, to resolve some difficulties that each account faces by appealing to the other, and to highlight their contributions to the emergence of atomic worldview. (shrink)