08/25/2011 08:15 pm ET | Updated Oct 25, 2011

Warren Buffett's Seven Biggest Moments In The Limelight

Warren Buffett's actions might not be predictable, but people certainly do take notice of them. His investments are mimicked, his remarks publicized and his opinions sought by people no less powerful than the president himself.

Indeed,the so-called Oracle of Omaha's most recent $5 billion investment in a troubled Bank of America is only the latest high-profile deed in Buffett's long contrarian track record. In 1965, for example, he invested in an American Express wracked by scandal. More recently, Buffett flat out rejected Standard & Poor's assessment of U.S. credit has even said that as a billionaire he should pay more taxes.

In the end, though, Warren Buffett's most attractive quality may be his seemingly eternal optimism. "All those people who think the world is going to end" Buffett reportedly told CNBC's Becky Quick on Wednesday. "I think they're wrong."

Here are seven of Warren Buffett's most memorable newsmakers:

7 Warren Buffett Moments