"Who all coveteth, oft he loseth all", He stated as well that this was "an olde proverb" which, indeed, in the form "All covet, all lose", was later to be quoted as the fable's moral by Roger L'Estrange. Jean de la Fontaine prefaced his version of the fable with the moral it illustrates before proceeding to a brief relation of the story. The point is not to be taken in by appearances, like the dog who attacks his reflection and falls into the water. As he struggles to swim to shore, he relaxes his grip on his plunder and loses "shadow and substance both". An allusive proverb developed from the title: Lâcher sa proie pour l’ombre (giving up the prey for the shadow). When this idiom was glossed in a dictionary of gallicisms, however, it was given the English translation, "to sacrifice the substance for the shadow", which is based on the equally proverbial opposition between shadow and substance found in English versions of the fable. Aphra Behn, in summing up Francis Barlow's 1687 illustrated version of "The Dog and Piece of Flesh", coalesced the ancient proverb with the new: The wishing Curr growne covetous of all. To catch the Shadow letts the Substance fall. In Roger L'Estrange's relation of "The Dog and a Shadow", "He Chops at the Shadow and Loses the Substance"; Brooke Boothby, in his translation of the fables of Phaedrus, closes the poem of "The Dog and his Shadow" with the line "And shade and substance both were flown". The allusive proverb is glossed as "Catch not at shadows and lose the substance" in a recent dictionary. One other author, Walter Pope in his Moral and political fables, ancient and modern (1698), suggested that the alternative proverb, "A bird in the hand is worth two in the bush", could be applied to the dog's poor judgment. Alternative applications 16th-century emblem books used illustrations in order to teach moral lessons through the picture alone, but sometimes found pictorial allusions to fables useful in providing a hint of their meaning. So in his Book of Emblemes (1586), the English poet Geoffrey Whitney gives to his illustration of the fable the Latin title Mediocribus utere partis (Make use of moderate possessions) and comments in the course of his accompanying poem, Whome fortune heare allottes a meane estate, Yet gives enowghe eache wante for to suffise: That wavering wighte, that