Looking back, I sometimes ponder the age-old question of how much difference the particular characteristics of individual leaders make in the sweep of history—whether those of us who rise to power are mere conduits for the deep, relentless currents of the times or whether we’re at least partly the authors of what’s to come. I wonder whether our insecurities and our hopes, our childhood traumas or memories of unexpected kindness carry as much force as any technological shift or socioeconomic trend.
