Benjamin Graham - Investment strategy(2)

From "Intelligent Investor" by Benjamin Graham
"The determining trait of the enterprising investor is his willingness to devote time and care to the selection of securities that are both sound and more attractive than the average. Over many decades, an enterprising investor of this sort could expect a worthwhile reward for his extra skill and effort in the form of a better average return than that realized by the passive investor.

Benjamin Graham always tried to buy stocks that were trading at a discount to their Net Current Asset Value. In other words he buy stocks that were undervalued and hold them until they became fully valued.