John P. Kotter said this quote

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.

~ John P. Kotter

A higher rate of urgency does not imply ever-present panic, anxiety, or fear. It means a state in which complacency is virtually absent.

~ John P. Kotter

Because management deals mostly with the status quo and leadership deals mostly with change, in the next century we are going to have to try to become much more skilled at creating leaders.

~ John P. Kotter

The rate of change is not going to slow down anytime soon. If anything, competition in most industries will probably speed up even more in the next few decades.

~ John P. Kotter