For the last several years, many have been buying just about any stock when the price drops. This can work well in a market that is trending up, but when the market trends down, this approach is disastrous.
Howard Marks wrote a book "The Most Important Thing". In it, he outlined what he viewed as the important things for success in investments. It is sort of "tongue in cheek" as Marks describes 19 items that are most important.
