Profit is not a cause but a result- - Peter Drucker

Effectiveness is, after all, not a «subject», but a selfdiscipline.

There is nothing so useless as doing efficiently that which should not be done at all.

The executive’s time tends to belong to everybody else. If one attempted to define an “executive” operationally (that is, through his activities) one would have to define him as a captive of the organization. Everybody can move in on his time, and everybody does. There seems to be very little any one executive can do about it. He cannot, as a rule, like the physician, stick his head out the door and say to the nurse, “I won’t see anybody for the next half hour.” Just at this moment, the executive’s telephone rings, and he has to speak to the company’s best customer or to a high official in the city administration or to his boss — and the next half hour is already gone.*