It sounds kind of crazy, but in times of turmoil in the market, I've felt a sort of serenity in knowing that I've checked and re-checked my work, one plus one still equals two regardless of where a stock trades right after I buy it.

The government - the ultimate short-term-oriented player - cannot withstand much pain in the economy or the financial markets. Bailouts and rescues are likely to occur, though not with sufficient predictability for investors to comfortably take advantage. The government will take enormous risks in such interventions, especially if the expenses can be conveniently deferred to the future. Some of the price-tag is in the form of back- stops and guarantees, whose cost is almost impossible to determine.

Investing is the intersection of economics and psychology.

Buying's easier, selling's hard - [it's] hard to know when to get out.

Value investing is risk aversion.

When you buy bargains and they become better bargains, it is easy to start to question yourself, which can impair your judgement. Real or imagined concerns about client redemptions, employee defections can greatly influence behavior away from rational.

A margin of safety is achieved when securities are purchased at prices sufficiently below underlying value to allow for human error, bad luck, or extreme volatility in a complex, unpredictable and rapidly changing world.