This is the most valuable company in the world and is still growing revenue by over 50% per year.Patiently holding quality growth stocks over many years can make a huge difference in your long-term returns. When considering where to start, there's one no-brainer choice, and it happens to be the most valuable company in the world.Nvidia (NVDA -3.38%) is the leading supplier of advanced computing hardware that is powering the artificial intelligence (AI) revolution. The stock has skyrocketed over 1,300% over ...