Non­fic­tion

Spin­oza, Atheist

  • Review
By – April 6, 2026

Steven Nadler is known as one of the most knowl­edge­able and acces­si­ble schol­ars of Baruch Spin­oza today. One might think that after his numer­ous books on the sub­ject, he would have run out of unique takes on the Ear­ly Mod­ern thinker. Spin­oza, Athe­ist proves that Nadler can still write a fresh and fas­ci­nat­ing take on one of West­ern thoughts’ most impor­tant and enig­mat­ic minds.

Spin­oza, Athe­ist has a decep­tive­ly sim­ple premise: to ana­lyze whether Spin­oza is indeed an athe­ist or whether he is, in the words of the eigh­teenth-cen­tu­ry Ger­man Roman­tic poet and philoso­pher Friedrich von Hard­en­berg, God intox­i­cat­ed.” As Nadler shows, answer­ing this premise requires a lot of philo­soph­i­cal back­ground. In order to deter­mine whether Spin­oza is indeed an athe­ist, he needs to first unpack whether Spinoza’s con­cep­tion of God counts against a broad claim of athe­ism. With nuance he unpacks argu­ments for whether Spin­oza is a pan­the­ist (God and the uni­verse are one) or panen­the­ist (God is big­ger than the uni­verse but the uni­verse is part of God).

After demon­strat­ing that Spinoza’s con­cep­tion of the Divine counts as a belief in God — though cre­ative and a major depar­ture from tra­di­tion­al the­ol­o­gy — Nadler turns his atten­tion to the def­i­n­i­tion of athe­ism in order to mea­sure Spin­oza against it. An athe­ist, as he defines it, can be seen in two ways. First, an athe­ist denies the exis­tence of a first cause of the uni­verse endowed with supreme intel­li­gence, free­dom, and design.” Sec­ond, an athe­ist is one who pays no rev­er­ence or awe to their own con­cep­tion of God. To them, God is an inter­est­ing idea but not the item of reli­gious focus. Nadler argues that Spin­oza is an athe­ist in both sens­es, but saves most of his most thought­ful analy­sis for the lat­ter def­i­n­i­tion. One walks away from the book feel­ing as if, had Spin­oza seen his God though a reli­gious lens rather than a philo­soph­i­cal one, we might be hard pressed to use the term atheist. 

Nadler proves this by show­ing that one can look at nature or God (since they are the same) in two ways. First, one can fol­low Spin­oza and divorce emo­tion from God, look­ing at God with rea­son and active com­pre­hen­sion. Or, one can look at God pas­sive­ly with won­der and awe. As Nadler explains, knowl­edge does not encour­age won­der; it dis­pels it.” Since Spin­oza knows God but doesn’t feel God, Spin­oza is an athe­ist by Nadler’s definition. 

Nadler is not dis­mayed that Spin­oza is an athe­ist. In fact, one receives the impres­sion that it makes him respect the thinker even more. Nadler ends his book with an epi­logue enti­tled Vir­tu­ous Athe­ist.” As he explains, Spin­oza­’s Ethics might not give us a depic­tion of a God that requires rev­er­ence, but it does give us a God that neces­si­tates moral liv­ing. For the philoso­pher, there is a dif­fer­ence between lov­ing God intel­lec­tu­al­ly and lov­ing God emo­tion­al­ly. While the for­mer does not require rev­er­ence, it does lead to moral liv­ing. In that respect Spin­oza may be an athe­ist but he is indeed a type of reli­gious per­son. As Nadler explains, true reli­gion is the prac­tice of jus­tice and lov­ing-kind­ness to oth­er human beings, whether it is moti­vat­ed by phi­los­o­phy and true knowl­edge or by false but salu­bri­ous beliefs about God.” 

In Spin­oza, Athe­ist Nadler has writ­ten a nuanced defense of Spin­oza that unfurls like the best kind of philo­soph­i­cal argu­ment. The book may be about a spe­cif­ic philoso­pher, but it is a book that super­sedes its sub­ject mat­ter and leaves read­ers ask­ing some of the most impor­tant reli­gious and philo­soph­i­cal ques­tions about the universe.

Rab­bi Marc Katz is the Rab­bi at Tem­ple Ner Tamid in Bloom­field, NJ. He is author of the books Yochanan’s Gam­ble: Judaism’s Prag­mat­ic Approach to Life (JPS) cho­sen as a final­ist for the PROSE award and The Heart of Lone­li­ness: How Jew­ish Wis­dom Can Help You Cope and Find Com­fort (Turn­er Pub­lish­ing) which was cho­sen as a final­ist for the Nation­al Jew­ish Book Award. 

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