What Makes Great Teachers Great?

When Ralph Lynn retired as a professor of history at Baylor University in 1974, dozens of his former students paid him tribute. One student, Ann Richards, who became the governor of Texas in 1991, wrote that Lynn's classes were like "magical tours into the great minds and movements of history." Another student, Hal Wingo, an editor of People magazine, concluded that Lynn offered the best argument he knew for human cloning. "Nothing would give me more hope for the future," the editor