A Rule Should Suit The Purpose.

One Cannot Be Successful On Visible Figures Alone ... The Most Important Figures That One Needs For Management Are Unknown Or Unknowable, But Successful Management Must Nevertheless Take Account Of Them.

The Most Important Things Cannot Be Measured.

Does Experience Help? No! Not If We Are Doing The Wrong Things.

Stamping Out Fires Is A Lot Of Fun, But It Is Only Putting Things Back The Way They Were.

Learning Is Not Compulsory; It's Voluntary. Improvement Is Not Compulsory; It's Voluntary. But To Survive, We Must Learn.