had by others. Persians think it not unnatural for a man to marry his daughter ; to Greeks it is unlawful. The Massagetae, acording to Eudoxus in the first book of his Voyage round the World, have their wives in common ; the Greeks have not. The Cilicians used to delight in piracy ; not so the Greeks. Ditferent people believe in different gods ; some in providence, others not. In burying their dead, the Egyptians embalm them ; the Romans burn them ; the Paeonians throw them into lakes. As to what is true, then, let suspension of judgement be our practice. The sixth mode relates to mixtures and participations, by virtue of which nothing appears pure in and by itself, but only in combination with air, light, moisture, solidity, heat, cold, movement, exhalations and other forces. For purple shows different tints in sunlight, moonlight, and lamplight ; and our own complexion does not appear the same at noon and when the sun is low. Again, a rock which in air takes two men to lift is easily moved about in water, either because, being in reality heavy, it is lifted by the water or because, being light, it is made heavy by the air. Of its own inherent property we know nothing, any more than of the constituent oils in an ointment. The seventh mode has reference to distances, positions, places and the occupants of the places. In this mode things which are thought to be large appear small, square things round ; flat things appear to have projections, straight things to be bent, and colourless coloured. So the sun, on account of its distance, appears small, mountains when far away appear misty and smooth, but when near at hand