The Temperaments, yes. Fortunately, Shroomy, I've already taken that quiz a few times! :P I'm ENFP (Extrovert, Intuitive, Feeling, Perceiving) ... which translates as Idealist(NF), Champion(ENFP).

Excerpt from Keirsey.com
IDEALISTS can become highly skilled in diplomatic integration. Their most practiced and developed intelligent operations are usually teaching and counseling, or conferring and tutoring. They have an instinct for interpersonal integration, learn ethics with ever increasing zeal, sometimes become diplomatic leaders, and often speak interpretively and metaphorically of the abstract world of their imagination.

They are proud of themselves in the degree they are empathic in action, respect themselves in the degree they are benevolent, and feel confident of themselves in the degree they are authentic. Idealist types search for their unique identity, hunger for deep and meaningful relationships, wish for a little romance each day, trust their intuitive feelings implicitly, aspire for profundity. Idealists do not abound, being as few as 8% and nor more than 10% of the population.

For CHAMPIONS, nothing occurs which does not have some deep ethical significance, and this, coupled with their uncanny sense of the motivations of others, gives them a talent for seeing life as an exciting drama, pregnant with possibilities for both good and evil. This type is found in only about 3% of the general population, but they have great influence because of their extraordinary impact on others.

Champions are inclined to go everywhere and look into everything that has to do with the advance of good and the retreat of evil in the world. They are eager to relate the stories they've uncovered, hoping to disclose the "truth" of people and issues, and to advocate causes. Champions strive toward a kind of spontaneous personal authenticity, and this intention always to "be themselves" is usually communicated nonverbally to others, who find it quite attractive.... etc and so on...