Grandiose delusions

Grandiose delusions (GD) or delusions of grandeur are a subtype of delusion that occur in patients suffering from a wide range of mental illnesses, including two-thirds of patients in manic state of bipolar disorder, half of those with schizophrenia, patients with the grandiose subtype of delusional disorder, and a substantial portion of those with substance abuse disorders. GDs are characterized by fantastical beliefs that one is famous, omnipotent, wealthy, or otherwise very powerful. The delusions are generally fantastic and typically have a supernatural, science-fictional, or religious theme. There is a relative lack of research into GD, in contrast to persecutory delusions and auditory hallucinations. About ten percent of healthy people experience grandiose thoughts but do not meet full criteria for a diagnosis of GD.

Quotes

 * I don't have delusions of grandeur, I have an actual recipe for grandeur.
 * Edward "Eddie" Morra (Bradley Cooper) in Limitless (Relativity Media, 2011), screenplay by Leslie Dixon, based on The Dark Fields by Alan Glynn.