Thesis: In the book The Alchemist, by Paul Coelho, the ability to do something great is distinctly emphasized. This book shows that anyone can do something great if they persevere. This is also shown by The Odyssey, Harry Potter, and Artemis Fowl.
Detail: "...I will be patient still, bearing with my breast a heart well-tried with trouble" (Homer 49).
Explanation: In The Odyssey, by Homer, Odyssey perseveres on Calypso's island for almost 10 years, but he stays true, and endures until he can get home. "...you're different from me, because you want to realize your dreams. I just want to dream about Mecca" (Coelho 57).
Detail: "He knew what he was doing when he gave me the Deluminator, didn't he?" "...he must've known I'd run out on you." "No," Harry corrected him. "He must've always known you'd always want to come back" (Rowling 391).
Explanation: In Harry Potter and The Deathly Hallows, Ron leaves the group, but never gives up. Luckily, Dumbledore knew what might happen and gave the Ron the help he would later need. This is similar to how Santiago never gave up, no matter how many times he was robbed, beaten, or lost. "He had worked for an entire year to make a dream come true" (Coelho 66).
Detail: "He still retained a childlike belief in magic, tempered by an adult determination to exploit it. If there was anybody capable of relieving the fairies of some of their magical gold, it was Artemis Fowl the Second" (Colfer 15)
Explanation: In Artemis Fowl, by Eoin Colfer, Artemis shows perseverance, by pushing forward even when he is made fun of for believing in fairies, because he knows if he uses his knowledge and perseveres then he'll achieve his goal. "So the boy was disappointed; he decided that he would never again believe in dreams" (Coelho 17). Santiago at first decides he shouldn't believe in dreams anymore, but later on does, and uses his knowledge to help him achieve that dream, like Artemis.
Conclusion: As shown in all of these books, the theme of perseverance is a common theme. In The Odyssey, Odyssey perseveres through ten years of suffering. In Harry Potter, Harry faces death on a yearly basis, but never gives up. In Artemis Fowl, even when faced with death, Artemis uses his mind to work through any problem. All of these books clearly show that anyone can achieve something great if they only never give up.