I am an investor that is interested in much more research then your typical investor. I like to look at the numbers, but also step back and look at the big picture. I feel my strategies have been successful in identifying sound investments, and lucrative opportunities and I welcome new ideas, alternative views, and critical opinions. Criticism will usually strengthen my opinion on an potential investment, and if it actually holds validity, well, then I gain by learning something new, so its a win-win. It's difficult to buy low and sell high, because when a stock is low, well, everyone around you is telling you that it just isn't a good investment. And when a stock is doing well, well, everyone is rating it a buy. The difficulty is being the one buying, when the crowds are yelling sell, and vice versa. It's funny how the main investment mantra, is the most difficult one to follow. Another good way to evaluate if its time to sell a stock, and take your profits, if you ask yourself would you buy more shares. And if the answer is no, well then its time to sell.