Here I propose an interpretation of the ancient Stoic psychological theory on which (i) the concepts that an adult human possesses affect the content of the perceptual impressions (φαντασίαι αἰσθητικαί) she forms, and (ii) the content of such impressions is exhausted by an ‘assertible’ (ἀξίωμα) of suitable complexity. What leads the Stoics to accept (i) and (ii), I argue, is their theory of assent and belief formation, which requires that the perceptual impression communicate information suitable to serve as the content (...) of belief. In arguing for (i), I reject a rival interpretation on which conceptualization occurs subsequently to the formation of a perceptual impression. In arguing for (ii), I deny that perceptual impressions have two kinds of content: one formulated in an assertible, the other sensory, featuring independently of this assertible. I explore the implications of (i) and (ii) for the Stoic theory of emotions, expertise, and rationality, and argue that they shed new light on the workings of impression, assent, and belief. (shrink)

One Stoic response to the skeptical indistinguishability argument is that it fails to account for expertise: the Stoics allow that while two similar objects create indistinguishable appearances in the amateur, this is not true of the expert, whose appearances succeed in discriminating the pair. This paper re-examines the motivations for this Stoic response, and argues that it reveals the Stoic claim that, in generating a kataleptic appearance, the perceiver’s mind is active, insofar as it applies concepts matching the perceptual stimulus. (...) I argue that this claim is reflected in the Stoic definition of the kataleptic appearance, and that it respects their more general account of mental representation. I further suggest that, in attributing some activity to the mind in creating each kataleptic appearance, and in claiming that the expert’s mind allows her to form more kataleptic appearances than the amateur, the Stoics draw inspiration from the wax tablet model in Plato’s Theaetetus (190e–196d), where Socrates distinguishes the wise from the ignorant on the basis of how well they match sensory input with its appropriate mental ‘seal’ (σφραγίς). (shrink)

In this paper we will focus on the following points in Epictetus. First, we will concentrate our attention on the celebrated distinction between things up to us and things not up to us. Second, we will survey the distinction between the material and its use. According to this distinction, all external things are not up to us and consequently have no intrinsic value, although, as materials for the capacity of choice, their use has value, since humans can use things well (...) or badly. Third, we will demonstrate that the use of the materials corresponds to the use of presentations. Finally, we will present the three topics of Epictetus’ philosophy: the topic relative to desire, the topic relative to impulse and the topic relative to assent, being the first concerned with judgments about things and our desires; the second, about impulses and adequate actions; and the third, about assent and persuasiveness of presentations. The knowledge contained in these three topics constitute, for Epictetus, what we should know to make good use of presentations and, consequently, to achieve the human good, which is a capacity of choice according to nature that has at its disposal a comprehensive set of correct opinions about reality. (shrink)

El objetivo de este artículo es analizar dos argumentos estoicos (uno de ellos transmitido por Cicerón y Aulo Gelio, el otro por Nemesio y Alejandro) que han sido frecuentemente interpretados como una defensa del compatibilismo. Presentaremos una interpretación alternativa de ambos argumentos, concentrándonos en el horizonte naturalista ofrecido por la metafísica y la ética del estoicismo antiguo. El análisis se articulará sobre el concepto de “asentimiento” y sobre la distinción entre aquello que “depende de nosotros” y aquello que no.