Unless strategy evaluation is performed seriously and systematically, and unless strategists are willing to act on the results, energy will be used up defending yesterday.

Unless a decision has degenerated into work, it is not a decision; it is at best a good intention.

Absolute size by itself is no indicator of success and achievement, let alone of managerial competence. Being the right size is.

Mission defines strategy, and strategy defines structure.

Once the facts are clear the decisions jump out at you.

Every three or four years I pick a new subject. It may be Japanese art; it may be economics. Three years of study are by no means enough to master a subject but they are enough to understand it. SO for more than 60 years I have kept studying one subject at a time.

If there is any one secret of effectiveness, it is concentration. Effective executives do first things first and they do one thing at a time.