The good are like one another, and friends to one another; and ... the bad, as is often said of them, are never at unity with one another or with themselves, but are passionate and restless: and that which is at variance and enmity with itself is not likely to be in union or harmony with any other thing.
Unity of command is essential to the economy of time. Warfare in the field was like a siege: by directing all one's force to a single point a breach might be made, and the equilibrium of opposition destroyed.
In order to live a fully human life we require not only control of our bodies (though control is a prerequisite); we must touch the unity and resonance of our physicality, our bond with the natural order, the corporeal grounds of our intelligence.
You use force, you create fear. Fear destroys trust. Trust is the basis of harmony. The hardliner believes harmony and unity can be brought by force. That's totally unscientific, totally wrong.
Moller, in his Essay on Architecture, taught that the building which was fitted accurately to answer its end would turn out to be beautiful, though beauty had not been intended. I find the like unity in human structures rather virulent and pervasive.
The American story has never been about things coming easy. It has been about rising to the moment when the moment is hard. About rejecting panicked division for purposeful unity. About seeing a mountaintop from the deepest valley. That is why we remember that some of the most famous words ever spoken by an American came from a president who took office in a time of turmoil: "The only thing we have to fear is fear itself.
Consequently, heretics and schismatics, separated from the unity of this Body, are able to receive the same Sacrament, but with no benefit to themselves; indeed, more to their own harm, in that they are judged the more severely rather than being liberated.
Unity in wills cannot be unless there is one will dominating and ruling all the rest to oneness... wills of mortals have need of a directive principle... therefore for the well-being of the world, there should be a monarchy.