In a divided world, power will come from keeping your own group united and cohesive, and your own mind clear and focused on your goals. The best way to maintain unity may seem to be the creation of enthusiasm and high morale, but while enthusiasm is important, in time it will naturally wane, and if you have come to depend on it, you will fail. Far greater defenses against the forces of division are knowledge and strategic thinking. No army or group can be divided if it is aware of the enemy’s intentions and makes an intelligent response.

—Robert Greene