A diverse business with AI upside, double-digit growth, and better credit than the U.S. government? It's tough to find a more dependable buy-and-hold stock than this.You've probably heard the expression, "You shouldn't put all your eggs in one basket."This is sage advice when investing because you never know what can happen, and you wouldn't want an unfortunate event to destroy the money you've worked hard for. A diverse portfolio of high-quality companies can appreciate over time but still protect you from ...