You don't need to be an expert in order to achieve satisfactory investment returns. But if you aren't, you must recognize your limitations and follow a course certain to work reasonably well. Keep things simple and don't swing for the fences.
Warren BuffettI can do anything I want, basically, as long as it doesn't involve athletic ability, or something like that.
Warren BuffettIf you donโt feel comfortable making a rough estimate of the assetโs future earnings, just forget it and move on. No one has the ability to evaluate every investment possibility. But omniscience isnโt necessary; you only need to understand the actions you undertake.
Warren Buffett