Charisma becomes the undoing of leaders. It makes them inflexible, convinced of their own infallibility, unable to change

To be effective, every knowledge worker, and especially every executive, therefore needs to dispose of time in fairly large chunks. To have small dribs and drabs of time at his disposal will not be sufficient even if the total is an impressive number of hours.

The large organization has to learn to innovate, or it won't survive.

Every organization must be prepared to abandon everything it does to survive in the future.

What the customer buys and considers value is never a product. It is always utility, that is, what a product or a service does for the customer.

Efficiency is doing better what is already being done.

We always remember best the irrelevant.