买入伯克希尔，为何是巴菲特此生最大的失误

Core Insights - Warren Buffett is approaching the final week of his tenure as CEO of Berkshire Hathaway, a company he transformed from a struggling textile business into a conglomerate valued at over $1 trillion since taking control in 1965 [1][23]. Group 1: Personal Wealth and Donations - Buffett's estimated net worth is $151 billion, primarily from Berkshire's Class A shares, placing him tenth on the Bloomberg Billionaires Index [3][25]. - If Buffett had not donated Berkshire Class B shares since 2006, his wealth could have reached approximately $359 billion, elevating his ranking to twenty-second [3][25]. Group 2: Investment Mistakes - Buffett considers his acquisition of Berkshire Hathaway as his most foolish investment, which resulted in a loss of hundreds of billions [3][25]. - In a 2010 interview, Buffett explained that he should never have purchased Berkshire, as it was a declining textile company with a history of shutting down factories [3][25][28]. - Initially, Buffett bought shares of Berkshire, believing it was undervalued, but later realized he had invested in a failing business [7][30]. Group 3: Lessons Learned - The key lesson from this experience is to exit a poor business immediately once recognized, as holding onto it can lead to significant losses [33][34]. - Buffett emphasizes the importance of acquiring good businesses rather than trying to manage poor ones, stating that a good manager's reputation can only be preserved if they avoid bad investments [36][41]. - He acknowledges that it took him 20 years to divest from the textile business, despite recognizing its decline early on [38][41].