XXII
There is another species of water which we Stoics are satisfied must be coeval with the world. If the latter has existed from all eternity, so must it too. If the world has had some beginning, then the water was assigned its place at the creation. You want to know what kind of water I mean? I mean the Ocean and all its seas that wash the continents of the earth. Some philosophers are convinced that the rivers likewise whose nature is inexplicable, date from the creation of the world; such are the mighty rivers Danube and Nile, too remarkable to be supposed by any possibility to have the same origin as other rivers.