The term "incorporeal" is properly applied only to the void, which cannot act or be acted on. Since the soul can act and be acted upon, it is corporeal.
EpicurusIt is impossible for someone to dispel his fears about the most important matters if he doesn't know the nature of the universe but still gives some credence to myths. So without the study of nature there is no enjoyment of pure pleasure.
EpicurusWhen we say that pleasure is the end, we do not mean the pleasure of the profligate or that which depends on physical enjoyment--as some think who do not understand our teachings, disagree with them, or give them an evil interpretation--but by pleasure we mean the state wherein the body is free from pain and the mind from anxiety.
Epicurus