A chance encounter with Mr Toad led me to The Wind in the Willows, and in particular this excerpt where the Sea Rat extols the virtues of adventure to the Water Rat. Both wonderful and fitting.
"Take the adventure, heed the call, now ere the irrevocable moment passes! ‘Tis but a banging of the door behind you, a blithesome step forward, and you are out of the old life and into the new! Then some day, some day long hence, jog home here if you will, when the cup has been drained and the play has been played, and sit down by your quiet river with a store of goodly memories for company."