One need not be eminent in any part of profound knowledge in order to understand it and to apply it. The various segments of the system of profound knowledge cannot be separated. They interact with each other. For example knowledge about psychology is incomplete without knowledge of variation.

You must have a supplier relationship of constant improvement.

The only useful function of a statistician is to make predictions, and thus to provide a basis for action.

A leader must have knowledge. A leader must be able to teach.

The greatest waste … is failure to use the abilities of people…to learn about their frustrations and about the contributions that they are eager to make.

The aim should be to work on the method of management.

If you wait for people to come to you, you'll only get small problems. You must go and find them. The big problems are where people don't realize they have one in the first place.