See Prof. Richardson's page on motivation www.witiger.com/marketing/motivation.htm which discusses Maslow, Taylor and Herzberg

To successfully motivate someone, you first have to understand that most successful motivation only happens if the person approaches this willingly and enthusiastically - you have to want to be motivated - it is almost impossible to motivate someone who does not want to be urged; all you can do is threaten them. What does Richardson say about using "Interest" to create motivation? www.witiger.com/marketing/motivation.htm

"Maslow said that most people want more than they have. Once a person met their most basic needs, they would develop higher needs. Maslow said, "As one desire is satisfied, another pops up in its place." Maslow created a hierarchy of needs with five levels:" Read more at www.mrdowling.com/602-maslow.html

"Herzberg was the first to show that satisfaction and dissatisfaction at work nearly always arose from different factors, and were not simply opposing reactions to the same factors, as had always previously believed". Read more at www.businessballs.com/herzberg.htm