Belief in the stable state serves primarily to protect us from apprehension of the threats inherent in change. Belief in stability is a means of maintaining stability, or at any rate the illusion of stability. But the most threatening situations are those that confront us with uncertainty, and by 'uncertainty', I don't mean risk, which is a probability ratio which we all know how to handle, particularly those who are managers of industry. We can deal with risk.
Donald Schon "REITH LECTURES 1970: Change and Industrial Society: Lecture 1: The Loss of the Stable State" at the BBC, 15 November 1970 – Radio 4; cited in: Richard Duane Carter (1981) Future challenges of management education. p. 102