Quote by John P. Kotter
The vast majority of large scale change efforts fail. Which means that the probability that you have actually experienced a failure, and your people know that and are pessimistic, therefore, about trying something again, is very high.
Summary
This quote suggests that most attempts at implementing significant changes in organizations are unsuccessful. It implies that individuals who have experienced these failures are more likely to be aware of the negative outcome and subsequently become pessimistic about attempting similar changes in the future. The quote highlights the high probability of encountering failure and the consequent impact it has on people's reluctance to embrace change again.