24579
Plotinus argues of the disconnect or great barrier that is created between the " nous " or mind 's noumenon ( see Heraclitus ) and the material world ( phenomenon ) by believing the material world is evil .
 Plotinus, Heraclitus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Plotinus, Heraclitus