[lawry]

The same goes with sports, school-projects, startups. Having a "partner" (as I like to call it) motivates you a lot, and really brings the best in you out. Also having a common goal is huge, which is something you might not always have in love relationship.

I've also found it can bring you down if the partnership does not work out, and you're left alone.

[douche]

I've never felt that way. Things are always best when they can be done alone, and you are either measuring yourself against yourself, or against the environment. People are unreliable and bail constantly.

[FroshKiller]

Your comment saddened me. As far as we know, there are only 7.5 billion people in the entire universe. None of us would get very far alone, and on the cosmic scale, each individual is damn close to being alone. Iron sharpens iron!