This book is for real estate agents, but I found some of it helpful for consulting.
"After years of coaching agents and other businesspeople, one thing we've learned is that you must bridge the motivation gap in your thinking. You must learn to take your personal, internal motivation as seriously as if it were the external kind. This is a mindset leap. It's also a sign of mental, emotional, and financial maturity. Not making the leap is an act of ego, of resistance to structure, discipline, and accountability" (12).
"The better you are at proving the highest level of service, the more people you can help. The more you help them, the more you make. Concentrate more on how you make your prospects and clients feel and less on how the process makes you feel" (44).