The trouble with the theory is that government is not a machine, but a living thing. It falls, not under the theory of the universe, but under the theory of organic life. It is accountable to Darwin, not to Newton. It is modified by its environment, necessitated by its tasks, shaped to its functions by the sheer pressure of life. No living thing can have its organs offset against each other as checks, and live. On the contrary, its life is dependent upon their quick cooperation, their ready response to the commands of instinct or intelligence, their amicable community of purpose. Government is not a body of blind forces; it is a body of men, with highly differentiated functions, no doubt, in our modern day of specialization, but with a common task and purpose. Their cooperation is indispensable, their warfare fatal. There can be no successful government without leadership or without the intimate, almost instinctive, coordination of the organs of life and action (pp. 56-57).