A tough lesson I've learned is most people simply don't care. They don't wish you bad but they don't wish you well that much either - they simply don't care.

This isn't a good or bad thing; it's just most people, the vast majority of the time, don't particularly care about what you're up to.

Long term friends do, of course, at least a little, but in perhaps limited doses.

This is both saddening and inspiring (liberating), depending on how you look at it.