Can you provide a character sketch of Lemuel Gulliver?

Lemuel Gulliver is the main character in Jonathan Swift's Gulliver's Travels, and so he merits special attention when approaching the novel. For the most part, Gulliver is thoroughly normal; he seems to have a comfortable income, he works as a surgeon, and he possesses few unusual or remarkable qualities. Indeed, we get the sense that Gulliver is something of an Everyman, and that the adventures he falls into are pure coincidence (or rotten luck) and could happen to just about anyone. However, it's worth noting that the one distinctive trait Gulliver does exhibit is a particularly enthusiastic curiosity. Throughout his journeys, Gulliver imbues his narrative with in-depth, rich descriptions of all he witnesses, and so he proves himself to be a deft observer of minute detail. Additionally, Gulliver does seem to become rather eccentric by the end of the novel. Indeed, his encounter with the Houyhnhnms and the Yahoos leads him to distrust and shun most interactions with humans, and it's safe to say that this characteristic is pretty unusual. So, while Gulliver at first seems relatively unremarkable, he slowly reveals a handful of interesting, and even unusual, characteristics as the novel progresses.