What are the motifs in Gulliver's Travels by Jonathan Swift?

Consider morality and ethics. In the novel, Gulliver's Travels, a great deal of time and description is given to illustrate the characteristics of good morality and bad morality, good ethics versus bad ethics. HE does this to combat the rampant corruption that swift saw occurring in his society at the time. He talks against war mongering, and those who pursue lavish luxury items at the expense of others.