 (i) Conflicting Appearances or Causal Invariance. The Ten Modes are preserved in Diogenes Laertius (9.78–88), Philo of Alexandria (On Drunkenness 169–202), and Sextus. Diogenes’ account of the Ten Modes may postdate Sextus’ (Sedley 2015). Sextus gives extensive illustrations, and integrates the Ten Modes into his general account of Pyrrhonism (PH 1.36–163; cf. M 7.345 for ascription of the Ten Modes to Aenesidemus; cf. Annas-Barnes 1985 and Hankinson 1995, 268; the sequence below follows Sextus). Here is the first of the Ten Modes, interpreted in two ways.