Progress is impossible ...

Progress is impossible without the ability to admit mistakes.
 Masaaki Imai

Quotes from the same author

To assure the prosperity of a firm should be a long-term strategy and the turnover of key managers should be taken into account from the stand point of long-term consideration and not from the monthly or quarterly flavors.
 Masaaki Imai
All of management's efforts for Kaizen boil down to two words: customer satisfaction.
 Masaaki Imai