Histories

Artabanus answered and said, “O king, there is no fault that any man of sound judgment could find either with this army or with the number of your ships; and if you gather more, those two things I speak of become even much more your enemies. These two are the land and the sea.

The sea has nowhere any harbor, as I conjecture, that will be able to receive this navy and save your ships if a storm arise. Yet there has to be not just one such harbor, but many of them all along the land you are sailing by.