The Importance of Being Earnest, Oscar Wilde
Introverted Sensing (Si): Jack believes in a universal set of rules by which society ought to live (one shouldn’t read a private cigarette case, one shouldn’t discuss culture, one shouldn’t talk like a dentist, etc.). He cares about image and does everything in his power to uphold it –including making a fake identity so that he can live a decadent life in the city while still maintaining an air of respectability in the country. Jack is attracted to Gwendolen because she’s “sensible” and “intellectual.”
Extraverted Thinking (Te): He likes to be in charge of things and gets quite upset when Algy takes over as the man in Cecily’s life. He’s good at giving orders and organising people and doesn’t hesitate to tell people what he thinks of them. He’s a clever negotiator and can talk his way out of situations that he can’t strategize out of. Jack can be a bit irritable, and doesn’t like to be rushed. Jack’s main aim in “bunburying” is to get specific results (whereas Algernon is in it for the fun).
Introverted Feeling (Fi): Jack sets his own moral code. He believes that one should always lie and is ashamed when he has to be honest. He’s a romantic who believes in marriage and doesn’t understand Algy’s initial apathy towards it. Jack is a natural guardian. He’s basically a father to Cecily, carefully moderating her education and laying down the law.
Extraverted Intuition (Ne): Jack is willing to be re-christianed, dress up and act in order to get what he wants. When his plans don’t go as intended, he doesn’t know what to do and has a hard time improvising. He’s also willing to humiliate himself by being questioned by Lady Bracknell so that he can marry Gwendolen.