Influence of Stephen Covey

I just started new classes this week and still see the influence of Stephen Covey in at least one of the classes. My instructor for Production Management used phrases such as "proactive", "reactive and "paradigms". Which to me are Covey keywords. I doubt if I hadn't read his "7 Habits" book that I would have even picked up on those. I do have one of his other books "First things First" on order from Amazon coming soon and I can't wait to read it.