'The first rule is not to lose. The second rule is not to forget the first rule.'
'Wide diversification is only required when investors do not understand what they are doing.'
'Only buy something that you'd be perfectly happy to hold if the market shut down for 10 years.'
'We simply attempt to be fearful when others are greedy and to be greedy only when others are fearful.'
'Our favourite holding period is forever.'
'If past history was all there was to the game, the richest people would be librarians.'
'Why not invest your assets in the companies you really like? As Mae West said, 'Too much of a good thing can be wonderful.''
'Your premium brand had better be delivering something special, or it's not going to get the business.'
'You are neither right nor wrong because the crowd disagrees with you. You are right because your data and reasoning are right.'
'We do not view the company itself as the ultimate owner of our business assets but instead view the company as a conduit through which our shareholders own assets.'
'Accounting consequences do not influence our operating or capital-allocation decisions. When acquisition costs are similar, we much prefer to purchase $2 of earnings that is not reportable by us under standard accounting principles than to purchase $1 of earnings that is reportable.'
Microsoft co-founder and chairman Bill Gates (L) and his wife Melinda Gates (C) listen as US investment guru Warren Buffett addresses a press conference in New York after he pledged over $30 billion in charity to the Bill & Melinda Gates Foundation.
Photograph: Nicholas Roberts/AFP/Getty Images