How does epstein develop his central idea that genetics plays an important role in athletic ability over the course this excerpt from the sports gene

The Sports Gene was written by David Epstein and published in 2013.

This book supports the idea that sports success has to do with both 'nature and nurture', that both genetics and training are highly influential, but also that each of them cannot bring what the other does.

The more a person practises, the better he/she will be. But up to a point. No one can achieve something that his/her body is not biologically or genetically prepared to do. This idea is in disagreement with other authors such as Anders Ericsson, who supported that training mattered more than innate talents and that could offset genetic inclinations.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)