They [those Who Believe That "there Are Men On The Other Side Of
The Earth"] Fail To Observe That Even If The World Is Held To Be Global
Or Rounded In Shape
They [those who believe that "there are men on the other side of
the earth"] fail to observe that even if the world is held to be global
or rounded in shape, or if some process of reasoning should prove
this to be the case, it would still not necessarily
follow that the land on the opposite side is not covered by masses of water.
-- Saint Augustine, The City of God, 426 A.D.