Barks later declared that he was sure that if not for a little humor in their troubled lives, they would certainly go insane. It was an attitude towards life that Barks would adopt. Later he would say it was natural for him to satirize the secret yearnings and desires, the pompous style and the disappointments of his characters. According to Barks, this period of his life would later influence his best known fictional characters: Walt Disney's Donald Duck and his own Scrooge McDuck. Donald's drifting from job to job was reportedly inspired by Barks's own experiences. So was his usual lack of success. And even in those that he was successful this would be temporary, just until a mistake or chance event caused another failure, another disappointment for the frustrated duck. Barks also reported that this was another thing he was familiar with. Scrooge's main difference to Donald, according to Barks, was that he too had faced the same difficulties in his past but through intelligence, determination and hard work, he was able to overcome them. Or, as Scrooge himself would say to Huey, Dewey and Louie: by being "tougher than the toughies and smarter than the smarties." In Barks's stories Scrooge would work to solve his many problems, even though the stories would often point out that his constant efforts seemed futile at the end. In addition, Scrooge was quite similar to his creator in appearing often to be as melancholic, introspective and secretive as he was. Through both characters Barks would often exhibit his rather sarcastic sense of humor. It seems that this difficult period for the artist helped shape many of his later views in life that were expressed through his characters. At the same time Barks had started thinking about turning a hobby that he always enjoyed into a profession: that of drawing. Since his early childhood he spent his free time by drawing on any material he could find. He had attempted to improve his style by copying the drawings of his favorite comic strip artists from the newspapers where he could find them. As he later said, he wanted to create his own facial expressions, figures and comical situations in his drawings but wanted to study the master comic artists' use of the pen and their use of color and shading. Among his early favorites were Winsor McCay (mostly known for "Little Nemo") and Frederick Burr Opper (mostly known for "Happy Hooligan") but he would later study any style that managed to draw his attention. At age 16, he was mostly self-taught but at this point he decided to take some lessons through correspondence.