If there is any one proof of a man's incompetence, it is the...

If there is any one proof of a man's incompetence, it is the stagnant mentality of a worker who, doing some small routine job in a vast undertaking, does not care to look beyond the lever of a machine, does not choose to know how the machine got there or what makes his job possible, and proclaims that the management of the undertaking is parasitical and unnecessary.