A rule should suit the purpose.

The most important things cannot be measured.

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.

Competition should not be for a share of the market-but to expand the market.

You have to manage a system. The system doesn't manage itself.

You do not find knowledge in a dictionary, only information.

A leader knows who is outside of the system and needs special help.