Serious answer: The Vulcans. Like many people, I found Spock and his logic to be an inspiration in helping me get through some of life's aggravations. The Vulcans have a rich cultural heritage, and any people who figure out how not to keep killing each other are definitely to be respected.
Frivolous answer: Tribbles and Hortas.
Tribbles, because they're soft and furry and they purr... and they inspired one of the funniest short stories I've ever read (in one of the anthologies) called "The Trouble With Borg Tribbles."
Also, in most surveys dealing with "Which Star Trek episode is your favorite?" or "Name your top 10 favorite Star Trek episodes", the Tribbles always make the list, usually behind "City on the Edge of Forever." There was a time when I could recite most of the whole "Tribbles" script... but although memory fades over time, I doubt I will ever forget the two conversations in the bar, between Scotty and Chekov (regarding the merits of scotch vs. vodka) and Scotty, Korax, and Kirk (regarding the fight and why Scotty started it).
Hortas, because in spite of their social order essentially being like that of hive creatures (one queen who dies after the offspring are ready to begin their lives), they're not mindless drones/workers. Diane Duane's "Rihannsu" series of Star Trek novels takes a look at how it might be for a Horta serving in Starfleet. The Romulan Commander refers to the Horta crewmember (whose name is Naraht) as "Ensign Rock."
Of course, there is always the question of what one should study if one wishes to cultivate any kind of fruit, vegetables, or other plants on Janus VI:
Horta-culture, of course.