My greatest weakness is between my ears.

The first principle of the investor is to conceal your investment process, to see whether you have a margin of safety, and to do everything possible to take advantage of that margin of safety.

If you know how someone invests, you also know a good deal about whey they invest.

The opportunity to invest may seldom knock, but the temptation to speculate will break your doorbell.

The world has no business in your investment process.

Margin of safety is your margin for error.

Great businesses are more common than great investments.

Only the speculators don't know themselves.

Wall Street is the most beautiful speculator-quarters in the world.

The kind of businessman I like is one who, when he's not managing his business, is home studying business.

All great businesses are beautiful and simple, but not easy.

Making mistakes as an investor is relatively easy to do; what stings is admitting them.

Advice to investors about to speculate--'Don't.'

An investor himself needs limits.

If you want to learn what makes businesses succeed, begin by learning what makes businesses fail.

A speculation can break your portfolio in two.

I always say investing is only risk deep.

Trading isn't an occupation I encourage among investors. I try to keep decisions down to a minimum.

I haven't had a taste of Wall Street and Wall Street hasn't had a taste of me.

The desire to not lose money is probably the greatest trait which distinguishes investors from sepculators.