Assuming Quirrell is Voldemort, this is badly at odds with what appear to be his constant attempts to encourage greater cynicism in Harry, to the point of taking away the people who serve as his anchors to the rest of humanity.
Even forgetting his attempts to shape Harry into a copy of his pessimistic self, his behaviour over the course of the story simply does not match that of a person who believes that paradise is possible.
Assuming Quirrell is Voldemort, this is badly at odds with what appear to be his constant attempts to encourage greater cynicism in Harry, to the point of taking away the people who serve as his anchors to the rest of humanity.
Even forgetting his attempts to shape Harry into a copy of his pessimistic self, his behaviour over the course of the story simply does not match that of a person who believes that paradise is possible.
If he wants Harry to destroy the current universe and create a new one in its place, encouraging cynicism with the current world would make sense.