SixSigmaisthemostimportantmanagementtrainingthingwe’veeverhad.It’sbetterthangoingtoHarvardBusinessSchool.It’betterthangoingtoCrotoville.Itteachesyouhowtothinkdifferently.
---JackWelchApril1999
六西格玛是我们曾经有过的最重要的管理培训它比上Harvard商学院和去Crotoville培训还要好它教会了