Definition.com
The Sinner is of two types: the virtuous who believe himself to be a sinner and the sinner who believes himself to be virtuous.
Definition.com
The Sinner is different from the saint in that he always has a future while the saint always has a past.
Definition.com
The Sinner is one who generally does not actually want to instigate change. Despite what he says, he prefers the status quo, because then everything is possible.