I've been going through the book by the late Peter Scholtes: The Leader's Handbook: Making Things Happen, Getting Things Done. His work builds upon the legendary W. Edwards Deming and Russell Ackoff, among others.

I often quote Scholtes (something also attributed to Peter Senge and others) as saying:

"People don't resist change, they resist being changed."

I think that's very insightful and that thought has led me to study change management, "motivational interviewing" and other related topics. It turns out that having the right answer and pushing it on others isn't the best strategy for effecting sustainable change. I had to learn those lessons the hard way and I'm still learning.