People Need To Know What Their Jobs

You Have To Manage A System. The System Doesn't Manage Itself.

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.

There Is No Knowledge Without Theory.

You Can Not Hear What You Do Not Understand.

When A System Is Stable, Telling The Worker About Mistakes Is Only Tampering.