I spent the fall quarter of my junior year of college in Tours, France, which was every bit as wonderful a privilege as I would think it sounds to most of you. Living in the wine country, traveling around Europe for a month before school and nearly every weekend during ... it's a time I've never forgotten.There was a close-knit group of us that ended up hanging out together, all terrific people, although there was one who was prone to fits of crankiness or depression. And I can remember wondering to myself about her, "What do you have to be unhappy about? Just look around you."Of course, this was immature of me, assuming that there couldn't be emotional challenges amid the glory of one's surroundings. Since then, I've had several of bouts of depression and anger with my