I don’t fault any Zionist or ally of Israel for having embraced the two-state solution, as I did for many years. No other peace plan could reconcile self-interest and lofty principles so seamlessly. No other plan could offer a better way to transcend the contradictions that reality imposed on Israelis, by making a Zionist argument, no less, for Palestinian statehood. Far more powerful than a mere solution to a problem, the idea of two states was, for many of us, an irresistible form of seduction—a promise that partition could make Israel whole.