PLUTARCH <br/><br/>
HOW TO HAVE WILLPOWER: AN ANCIENT GUIDE TO NOT GIVING IN 

 -  PRINCETON UNIVERSITY PRESS 
<br/><br/> Will Power 
<br/><br/><label>ISBN: </label>9780691220345 
<br/><br/><label>Dewey Class. No.: </label>179.9 PLU