Quantitative Screening Before Qualitative

"identify every equity in the world that was trading below liquidation value and to rank each of them in order of attractiveness."

"One is to buy at times when the general market is low, measured by quantitive standards of value."

"The essential concept is to buy under-valued, unrecognized, neglected, out of fashion or misunderstood situations where inherent value, a margin of safety and the possibility of sharply changing conditions create new and favourable investment opportunities"