On the Incorruptibility of the World (121-125)

And in addition to these arguments they adduce the facts that many great and deep bays and gulfs of vast seas have been dried up, and have become land, and have so turned out no insignificant addition to the adjacent country when sown and planted, and on that soil there is still left plenty of proof of such spots having formerly been sea, in the pebbles, and shells, and other things which are commonly washed up on the sea-shore being found in them.

But if the sea is gradually being diminished then the earth also will be diminished; and in long revolutions of years every one of the elements will be entirely consumed and destroyed; and the whole air will be [*] [*] [*]

And for the purpose of establishing the third alternative of this question they use the following argument: beyond all question that thing is destroyed all the parts of which are liable to destruction; but all the parts of the world are liable to destruction, therefore the world also is liable to destruction.

But we must now proceed to consider the question which we postponed till the present time. What sort of a part of the earth is that, that we may begin from this, whether it is greater or less, that is not dissolved by time? Do not the very hardest and strongest stones become hard and decayed through the weakness of their conformation (and this conformation is a sort of course of a highly strained spirit, a bond not indissoluble, but only very difficult to unloose), in consequence of which they are broken up and made fluid, so that they are dissolved first of all into a thin dust, and afterwards are wholly wasted away and destroyed? Again, if the water were never agitated by the winds, but were left immoveable for ever, would it not from inaction and tranquillity become dead? at all events it is changed by such stagnation, and becomes very foetid and foul-smelling, like an animal deprived of life.