Economic and moral rewards
The most important things that push us to work hard are the economic and moral rewards which are different from desires and needs.
A person who needs money searches for work and chooses the work that offers more rewards to him.
The thing that makes the person search for work is called (the internal desire for work) which is internal power pushing him to search and to direct his acts and behavior.
The things that push the person to work are called the human needs which push that person to work and get them to get satisfaction.
Finally, the economic and moral rewards from institutions to persons increase and develop the output, and the things that make persons work hard are the internal desire and the rewards.
Firas Taleb
E&T by M.T