Authors:
  1. Quotes
  2. Authors
  3. P
  4. P. T. Barnum
  5. The possession of a perfect knowledge of your business is...

The possession of a perfect knowledge of your business is an absolute necessity in order to insure success.

P. T. Barnum
Order, Perfect, Possession
P. T. Barnum (1999). “Art of Money Getting”, p.47, Applewood Books
The possession of a perfect knowledge of your business is an absolute necessity in order to insure success.