Community.

http://www.theatlantic.com/health/archive/2013/04/relationships-are-more-important-than-ambition/275025/

Many nuggets of interest in this article today, re pursuit of greatness vs staying put.

After all, relationships and community impose constraints on freedom, binding people to something larger than themselves. The assumption in our culture is that limiting freedom is detrimental to well-being. That is true to a point. Barry Schwartz, a psychological researcher based at Swarthmore College, has done extensive research suggesting that too much freedom -- or a lack of constraints -- is detrimental to human happiness.

"Relationships are meant to constrain," Schwartz told me, "but if you're always on the lookout for better, such constraints are experienced with bitterness and resentment."