We've used derivatives for many, many years. I don't think derivatives are evil, per se, I think they are dangerous.
Warren BuffettNevertheless, as circumstances presently appear, I feel substantially greater size is more likely to harm future results than to help them. This might not be true for my own personal results, but it is likely to be true for your results.
Warren BuffettYou have to understand accounting and you have to understand the nuances of accounting. It's the language of business and it's an imperfect language, but unless you are willing to put in the effort to learn accounting - how to read and interpret financial statements - you really shouldn't select stocks yourself
Warren Buffett