almost complete collection of Spanish and Dutch naval logs of the 16th and 17th centuries. Their references to the fates of other ships have often allowed Scrooge to locate sunken vessels and recover their treasures from their watery graves. Mostly self-taught as he is, Scrooge is a firm believer in the saying "knowledge is power". Scrooge is also an accomplished linguist and entrepreneur, having learned to speak several different languages during his business trips around the world, selling refrigerators to Eskimos, wind to windmill manufacturers in the Netherlands, etc. Morality and beliefs Both as a businessman and as a treasure hunter, Scrooge is noted for his drive to set new goals and face new challenges. As Carl Barks described his character, for Scrooge there is "always another rainbow". The phrase later provided the title for one of Barks's better-known paintings depicting Scrooge. Periods of inactivity between adventures and lack of serious challenges tend to be depressing for Scrooge after a while; some stories see these phases take a toll on his health. Scrooge's other motto is "Work smarter, not harder." As a businessman, Scrooge often resorts to aggressive tactics and deception. He seems to have gained significant experience in manipulating people and events towards his own ends. As often seen in stories by writer Guido Martina and occasionally by others, Scrooge is noted for his cynicism, especially towards ideals of morality when it comes to business and the pursuit of set goals. This has been noted by some as not being part of Barks's original profile of the character, but has since come to be accepted as one valid interpretation of Scrooge's way of thinking. Scrooge seems to have a personal code of honesty that offers him an amount of self-control. He can often be seen contemplating the next course of action, divided between adopting a ruthless pursuit of his current goal against those tactics he considers more honest. At times, he can sacrifice his goal in order to remain within the limits of this sense of honesty. Several fans of the character have come to consider these depictions as adding to the depth of his personality, because based on the decisions he takes Scrooge can be both the hero and the villain of his stories. This is one thing he has in common with his nephew Donald. Scrooge's sense of honesty also distinguishes him from his rival Flintheart Glomgold,