When another country called on Sparta for military help, the Spartans wouldn’t send their army. They sent one Spartan commander. This was all it took. Because courage, like fear, is contagious. One person who knows what they are doing, who isn’t afraid, who has a plan is enough to reinforce an outnumbered army, to buck up a broken system, to calm chaos where it has taken root. And so a single Spartan was all their allies needed.

