Motivation?

People differ by nature not only in their ability to perform a specific task but also in their will to do so. People with less ability but stronger will are able to perform better than people with superior ability and lack of will. Hard work is a crucial to success and achievement. 


This belief was underscored by Albert Einstein when he said that-
 "Genius is 10% inspiration and 90% perspiration." 

This "will" to do is known as Motivation.