Finn Mac Cumhail, as a boy, was sent to Finnegas the Bard, to learn wisdom and the ways of the world. Now Finnegas had been fishing for the Salmon of Knowledge for seven long years.. (Salmon that ate the nine hazelnuts in the Well of Segais, yadda, yadda, yadda).. Now the day that Finn was sent to Finnegas, Finnegas had actually caught the fish. Because Finn was placed as his apprentice, he gave him the fish to cook.. but there was one condition. Finn COULD NOT eat the fish.. Finnegas was saving that honor for himself.
Now Finn, being the good lad that he was, quickly set about cooking the fish. But getting the fire too hot (he was, after all, a momma's boy), the fish began to blister and Finn in his eagerness to do the job right, quickly tried to pry the blister off. In doing so, his own thumb got burned and began to blister. Before thinking about the juice from the fish that may be on his own finger, he quickly began to suck the blister on his thumb.. Thus all the world's wisdom became reposited in Finn, fulfilling a prophecy..

EDIT: I probably should have put the latin translation in the description.. "A mari usque ad mare"-From sea to sea
"A priori"-From before "A posteriori"-From after "Ab aeterno"-To eternity
"Sapientia Mundus Regatur" - Wisdom rules the world

The "Balaenae nobis conservenae sunt" part was just me being catty.. Pretty much translates into The Whales let there be conservation of.. which is Save the Whales.. I don't know.. it seemed appropriate at the time with the picture of the fish and all.. I'm not caring for it now.