Empowering friends, picking your battles, always checking principle with prudence, never overestimating American capacities, but never overestimating the enemy’s strength: this is best seen not as a strategy for all contingencies but as a disposition, a habit of mind, a temperament.

Michael Ignatieff on George Kennan's approach to US foreign policy, America's Melancholic Hero (The New York Review of Books, March 6, 2014).