“So long as a man’s power, that is, his capacity to realize what he has in mind, is bound to the goal, to the work, to the calling, it is, considered in itself, neither good nor evil, it is only a suitable or unsuitable instrument. But as soon as this bond with the goal is broken off or loosened, and the man ceases to think of power as the capacity to do something, but thinks of it as a possession, that is, thinks of power in itself, then his power, being cut off and self-satisfied, is evil; it is power withdrawn from responsibility, power which betrays the spirit, power in itself.”
Martin Buber, Between Man and Man