This paper discusses ἐπιβολαὶ τῆς διανοίας, which later Epicureans are supposed to have elevated to a fourth criterion of truth to complement perceptions, preconceptions and feelings. By examining Epicurus’ extant writings, the paper distinguishes three different senses of the term: ‘thought in general’, ‘act of attention’ and ‘mental perception’. It is argued that only the sense ‘mental perception’ yields a plausible reading of ἐπιβολαί as a criterion of truth. The paper then turns to the textual evidence on ἐπιβολαί in later (...) authors. While the term ἐπιβολή is not used by Cicero, Lucretius and Philodemus in the sense of mental perception, it is argued that this still is the most plausible way of understanding ἐπιβολή as a criterion of truth. (shrink)

In Book 3 of the Tusculans, Cicero reports that the Cyrenaics practised the premeditation of future evils. This article focuses on the philosophical consistency of this exercise with other Cyrenaic testimonies. It argues for the authenticity of Cicero’s report and provides a critical survey of previous attempts to reconstruct the theory underlying Cyrenaic premeditation, which addresses crucial questions about the management of future pleasures and pains, and the duration of affections. New evidence from Diogenes Laertius 2.94 is then used to (...) support an alternative interpretation of the Cyrenaic praemeditatio malorum. (shrink)