Warren Buffett Case Warren Buffett is the role model to all investors; therefore, I believe what he believed in is right (at least to him). However,we need to understand that not all of his rules work for everyone. Buffett's first rules is not to lose. The second rule is not to forget the first rule. He is absolutely right about this because risk management is always the key to success in investing. I think that valuing a share based on its relative performance to similar shares is a good strategy to make sure the return on your investment. The comparison of an investment against other returns available in the market was an important benchmark of performance is a good point. Moreover, Buffett also said that we should invest based on sound research and a detached emotional state and not to become an emotional slave to day to day price fluctuation. Buffett also has his points when he said that we should not believe in Efficient Market Theory because the market does have efficient sometimes doesn't mean the market always have its efficient. The intrinsic value is another point that inspired me because I agreed with him about we should focus on the firm's future output but not the historical input. However, I slightly disagree that accounting reality is useless. It is because we can't tell a firm's financial health by just looking at the economic reality. I also think that his heavy focus on economic reality relies too heavily on subjective evaluation of intangible assets and sometimes future cash flows and discount rates are difficult to estimate.Furthermore, Buffett suggested to invest heavily on one stock if you have faith on that company and know that company is going to do well. Buffett can do that because he has so much influence and investment in different fields. However, for normal people like us, we might not have the power that Buffett has; therefore,