Warren buffet: A good business that can be purchased for less than the discounted value of its future earnings.blog

George Soros: An investment that can be purchased (or sold) prior to a reflexive shift in market psychology/fundamentals that will change its perceived value substantially.

Benjamin Graham: A company that can be purchased for substantially less than its intrinsic value.

Some other examples are:

The Corporate Raider: Companies whose parts are worth more than the whole. Continue reading