Which fable from aesop best illustrates the moral idea that incentive spurs effort?

That story which best illustrates the moral idea that incentive spurs effort is “The Hare and the Hound”.  

Here is the story;

"A Hound having started a Hare from his form, after a long run, gave up the chase.  A Goat-herd, seeing him stop, mocked him, saying: "The little one is the best runner of the two."  The hound replied; "You do not see the difference between us; I was only running for a dinner, but he for his life."

Aesop's Fables or otherwise known as the Aesopica, is an accumulation of tales credited to Aesop, a slave and storyteller known to have lived in antiquated Greece somewhere in the range of 620 and 564 BCE.

overview:

this is a technology-dependent lesson that students can guide at their own pace of exploration and learning. students share what they learn through the use of twitter (or alternative classroom sharing medium like todaysmeet). the use of a social sharing platform like twitter gives students a place for sharing with a wider audience, for more effective means of communication with each other, for incorporating viewpoints from all students in the classroom, and a means to reference thinking and learning by the use of a hashtag at a later time. students will understand the role the allied air forces played in the normandy invasion. teachers can use this as a stand-alone lesson or offer more structure by guiding students through each source, one by one. teachers may learn more about the eighth air force by accessing the abmc’s strategic bombing campaign interactive.