Agama-agama umat manusia harus digolongkan di antara delusi massa semacam ini. Tak seorang pun, tidak perlu dikatakan, yang berbagi khayalan pernah mengenalinya seperti itu. Asli: The religions of mankind must be classed among the mass-delusions of this kind. No one, needless to say, who shares a delusion ever recognizes it as such.

— Sigmund Freud