A Godless Jew (1989)
Peter Gay’s 1989 A Godless Jew, delves into Sigmund Freud’s atheism (aka Freudian atheism), his Jewish cultural identity, and their role in the development of psychoanalysis. [4]
In atheism types, Freudian atheism [HD:44] is the brand of atheism of Austrian psychologist Sigmund Freud; the roots of which are diagrammatically shown on the atheism genealogy page.

Overview
In 1895, Austrian psychologist Sigmund Freud penned his draft outline “A Project for Scientific Psychology”, wherein he sought to supplant mental psychological world with the chemical thermodynamic logic of free energy and bound energy; an atheism implicit method of logic.

Freud’s main atheism-espousing works, according to general opinion, are: The Future of an Illusion (1927), Civilization and Its Discontents (1930), and Moses and Monotheism (1939). [1] Freud, in his Moses and Monotheism, asserted that Moses was but either Akhenaten, and that psychoanalytic research leads to the result that reduces religion to but a neurosis; specifically:

Religion is a neurosis of mankind. Its grandiose powers [are but the result of] a neurotic obsession in individuals.”
Sigmund Freud (1939), Moses and Monotheism (pg. 68)

In 1966, French philosopher Paul Ricoeur, in his “The Atheism of Freudian Psychoanalysis”, amid writing on the general topic “is god dead?”, recognized Freud as one of the outstanding atheists of modern culture. [1]

Types | Other
The following is a listing of other atheism types:

● Epicurean atheism
● Feuerbachian atheism
Goethean atheism
● Lenin atheism
Marxian atheism
● Nietzschean atheism
● Schopenhauerian atheism
Thimsian atheism

Quotes
The following are related quotes:

“Freud’s originality—the originality of Freudian atheism—is that his atheism is not just another instance of philosophical empiricism or scientific positivism, but of an interpretation of personal experience. In this fashion, Freudian thought comes to be classed along with the thought of Feuerbach, Marx, and Nietzsche.”
— Bernard Lonergan (1973), “Sacralization and Secularization” [2]

“The grandfather of Marxian atheism and Freudian atheism is Ludwig Feuerbach, who was first a theologian, then a Hegelian, and finally an atheistic philosopher.”
— Hans Kung (1990), Freud and the Problem of God [3]

References
1. (a) Ricoeur, Paul. (1966). “The Atheism of Freudian Psychoanalysis” (translator: Ruth Dowd), Concilium, 16, 59-72.
(b) Lonergan, Bernard J.F. (1973). “Sacralization and Secularization”, in: Philosophical and Theological Papers, 1965-1980, Volume 17 (editors: Robert C. Croken, Robert M. Doran) (pg. 261). University of Toronto Press.
2. Lonergan, Bernard J.F. (1973). “Sacralization and Secularization”, in: Philosophical and Theological Papers, 1965-1980, Volume 17 (editors: Robert C. Croken, Robert M. Doran) (pg. 261). University of Toronto Press.
3. Kung, Hans. (1990). Freud and the Problem of God (translator: Edward Quinn) (pg. 3). Yale University Press.
4. Gay, Peter. (1989). A Godless Jew: Freud, Atheism, and the Making of Psychoanalysis. Yale University Press.

TDics icon ns