Aesop's Fables (1884)
157. The Great and the Little Fishes.
A Fisherman was drawing up a net which he had cast into the sea, full of all sorts of fish. The Little Fish escaped through the meshes of the net, and got back into the deep, but the Great Fish were all caught and hauled into the ship.
Our insignificance is often the cause of our safety.
Aesop's Fables: A New Revised Version From Original Sources (translator not identified), 1884 . Illustrations by Ernest Henry Griset (1844-1907), John Tenniel (1820-1914) and Harrison Weir (1824-1906). Available online at Project Gutenberg.