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Fear and greed are potent motivators. When both of these forces push in the same direction, virtually no human being can resist.

During periods of extreme fear or greed, you don't have the proper balance between those two to generate market efficiency and you get extremes in behavior.

Greed is so destructive. It destroys everything.

Greed is a basic part of animal nature. Being against it is like being against breathing or eating. It means nothing.

We simply attempt to be fearful when others are greedy and to be greedy only when others are fearful.

Greed is the lack of confidence of one's own ability to create.

Greed has been with human beings forever. We have a number of things in our species that you would call 'the dark side,' and greed is one of them. If you don't put certain structures in place or restrictions on those parts of our being that come from that dark place, then it gets out of control.

Greed is a bottomless pit which exhausts the person in an endless effort to satisfy the need without ever reaching satisfaction.

Fear tends to manifest itself much more quickly than greed, so volatile markets tend to be on the downside. In up markets, volatility tends to gradually decline.

Greed is a sin because humans are social creatures. And they simply cannot survive without the opposite of greed, which is cooperation.