7882
He defended the arguments of Ayn Rand for ethical egoism , and also wrote frequently on business ethics , a field in which he deployed a neo-Aristotelian ethical stance whereby commercial and business conduct gain their moral standing by constituting extensions of the virtues of productivity and prudence .
 person: Ayn Rand; person: neo-Aristotelian
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Ayn Rand; person: neo-Aristotelian