“And this in turn makes it plain that the Right Man problem is a problem of highly dominant people. Dominance is a subject of enormous importance to biologists and zoologists because the percentage of dominant animals — or human beings — seems to be amazingly constant. Bernard Shaw once asked the explorer H. M. Stanley how many other men could take over leadership of the expedition if Stanley himself fell ill; Stanley replied promptly: "One in twenty." "Is that exact or approximate?" asked Shaw. "Exact." And biological studies have confirmed this as a fact. For some odd reason, precisely five per cent — one in twenty — of any animal group are dominant — have leadership qualities. During the Korean War, the Chinese made the interesting discovery that if they separated out the dominant five per cent of American prisoners of war, and kept them in separate compound, the remaining ninety-five per cent made no attempt to escape.”

Source: About, p. 216