To manage one must lead. To lead, one must understand the work that he and his people are responsible for

It's not enough to do your best; you must know what to do & then do your best.

Knowledge is theory. We should be thankful if action of management is based on theory. Knowledge has temporal spread. Information is not knowledge. The world is drowning in information but is slow in acquisition of knowledge. There is no substitute for knowledge.

Now, we learn that a system must have an aim. Without an aim, there is no system.

People copy examples and then they wonder what is the trouble. They look at examples and without theory they learn nothing.

There must be consistency in direction.

Without theory, there are no questions.