Having read both descriptions, I'm going to say I'm a little of each. And, in truth, there's probably a good deal of every sign in me, as I suspect there is in each of us. I do think I'm more of an introvert (capricorn) than extrovert (sagittarius). However, that comes from knowing absolutely that I'm an INFJ (yep, me and Gandhi). And that's a whole other discussion entirely. So we won't go there...today.
Below are descriptions of my two signs. I'll let you decide which fits me best.
Sagittarius is the sign of the zodiac mainly concerned with philosophy, higher education and global thinking. It is ruled by Jupiter, the planet of expansion, benevolence and luck/fortune. Individuals who have a strong Sagittarian influence are typically interested in expanding their horizons through traveling abroad, learning foreign languages, or immersing themselves in unique cultures. These individuals thrive on higher education; once they find a subject(s) they’re passionate about, they will search relentlessly for more answers and more information to build on what they know. They are also fond of ethics, as it appeals to their philosophical nature and is a subject that is so contextually dependent that they’re skilled at being flexible in applying sound philosophical observations to complex situations.
Because Sagittarius is a mutable sign, they are generally very adaptable philosophically because they seek to understand the world from a higher perspective and are perspicacious in finding higher meanings through their varied encounters. They tend to be optimistic and have a great capacity for faith, as it is this good-natured faith that usually plays into their fortunate endeavors. They are not usually known for their reliability (unless they also have a significant Capricorn influence) because their attentions have a tendency to be scattered.Sagittarius is a fire sign, which imparts a fiery enthusiasm that shows through their (blunt) sincerity, honest convictions, and drive for independence. They enjoy adventures and are partial to the great outdoors.