He didn't really, he just used it as a tool to help him step outside of all of his deeply ingrained beliefs.
Lucifer,morning star, The Lord of Evil and Decieve, and lies.
He can appear evil at times, especially when he is hooked on demon's blood, but Sam is never evil. Even the power he gains while on demon's blood is used to defeat more powerful demons such as Alistair, and Lilith, and he uses it again in season five to defeat Famine.
Descartes uses the evil genius argument to get everything except what he can be sure is true off of the table. He asserts that there is an evil genius as powerful as God that is deceiving him about absolutely everything. He cannot be certain of any of his thoughts in such a scenario. He cannot be perfectly certain that this evil genius does not exist. As a result, it is impossible to fully trust anything in terms of senses, memories, thoughts, or beliefs.
Descartes creates the evil genius in an attempt to throw everything that he thinks he knows into question. The evil genius has god-like power that he uses to deceive Descartes. Descartes cannot disprove the existence of such a creature. You cannot trust your thoughts in such a scenario, thus Descartes cannot be certain that any of the information he gets from his senses, his memories, his thoughts, or his beliefs is real.
Demon like.
no why are you asking this
demon
Biblically, there is no specific demon listed as being related to a specific evil, such as suicide. If it were true that there were some demonic involvement in some suicides, there is no way of knowing how great the influence was or which particular "persons" were involved in them.
No, she wasn't a demon. Simply an evil and angry spirit.
When someone calls you a demon it means that you are evil.
Descartes' evil genus argument is about a creature with god-like power that can deceive Descartes regarding absolutely anything. The purpose of conceptualizing such a creature is to cast everything you think you know into doubt so that you might see what remains.
demons and vampires are about the same, all evil beings is a "demon"