America's civilization perturbs the trajectories of all other civilizations just by existing.
Freedom Just Around the Corner: A New American History: 1585-1828The factor that made him so powerful was also his greatest liability.
The Fall of the Roman Empire: A New History of Rome and the BarbariansThenceforth they thought that, rationally concluded, doubt could become an instrument of knowledge.
The Historian's Craft: Reflections on the Nature and Uses of History and the Techniques and Methods of Those Who Write It.