Ne: Dumbledore is an innovator, curious about many different things; he fills his office with an assortment of interesting things, books, unusual magical objects, and more. He trusts his gut instinct when it comes to people; he senses when Harry (or Tom Riddle) are concealing the truth from him, and trusts Snape in spite of his cruelty to the students. Dumbledore gradually reaches an understanding about Voldemort’s spelled objects, but lacks a linear vision in which to express to Harry what he must do with them.
Ti: He gradually came to a logical conclusion about the Horcruxes over time, and shared his findings with no one – he is even reluctant to allow Harry to learn about them until the appropriate time. Dumbledore often makes decisions based on pure logic, without sharing his reasons for doing so – unintentionally hurting Harry’s feelings in the process (avoiding Harry one year, fearing Harry’s link to Voldemort would make Harry vulnerable in Dumbledore’s presence). He seeks understanding rather than finite solutions, is amenable to fantastical ideas, and resists external judicial authority, leading to his conflict with the Ministry.
Fe: His lack of awareness of emotional fall-outs changed when a wizard duel left his sister dead; Dumbledore feels enormous remorse and guilt over his role in that conflict. He seeks to protect Harry and his friends, but sometimes goes about it the wrong way; Dumbledore is very forgiving of others, and kind to them even when he doesn’t share their belief systems; he goes out of his way to keep Professor Trelawney safe, not merely out of logical reasons, but compassion. Dumbledore is kind to Harry’s aunt and uncle, and even his cousin, despite of their nastiness to him.
Si: Past events, such as a relationship that went bad in the end, and his sister’s death, keep Dumbledore grounded. He keeps all of his vivid memories inside the Pensieve so that he can revisit them, sorting through them for external clues and internal remembrances that will enlighten him and Harry both.