Sextus Empiricus Pyrrhoniae Hypotyposes 1.29.210

[210] Now that this latter differs from our Way of thought is plain at once; for Heracleitus ¹ makes dogmatic statements about many non-evident things, whereas we, as has been said, do not. It is true that Aenesidemus and his followers used to say that the Sceptic Way is a road leading up to the Heracleitean philosophy, since to hold that the same thing is the subject of opposite appearances is a preliminary to holding that it is the subject of opposite realities, and while the Sceptics say that the same thing is the subject of opposite appearances, the Heracleiteans go on from this to assert their reality. ² But in reply to them we declare that the view about the same thing having opposite appearances is not a dogma of the Sceptics but a fact which is experienced not by the Sceptics alone but also by the rest of philosophers and by all mankind;