Sartre’s atheism rejects specifically the Scholastic creator-God.

Evidence

In one of his transcribed conversations with Beauvoir, he said to her, ‘It seems to me that a great atheist, truly atheist philosophy was something philosophy lacked. And that it was in this direction that one should now endeavour to work.’ Beauvoir replied, ‘To put it briefly, you wanted to make a philosophy of man.’ — Sarah Bakewell, At the Existentialist Café, 1018 (#corroborates, via linked claim)

Sartre was a profound atheist, and a humanist to his bones. He outdid even Nietzsche in his ability to live courageously and thoughtfully in the conviction that nothing lies beyond, and that no divine compensations will ever make up for anything on this earth. For him, this life is what we have, and we must make of it what we can. — Sarah Bakewell, At the Existentialist Café, 1017 (#expands, via linked claim)

Obviously, secularism and atheism are not interchangeable categories, but the secularist relegation of God and religion to the private domain makes both the secularist and the atheist, insofar as the problem of ingratitude is concerned, equally antithetical to theism. — Wael Hallaq, Restating Orientalism, 989 (#complicates, via linked claim)

Categorization

• XREF: connects to: Sartre saw philosophy as lacking a genuinely atheist system and aimed to supply it. — Sarah Bakewell, At the Existentialist Café: Freedom,…, 1018; Secularism and atheism both reject theism’s ingratitude problem by privatizing God — Wael Hallaq, Restating Orientalism: A Critique of…, 989; Sartre’s atheism was more thoroughgoing than Heidegger’s or even Nietzsche’s. — Sarah Bakewell, At the Existentialist Café: Freedom,…, 1017 (+1 more)

Broader Connections

• Sartre saw philosophy as lacking a genuinely atheist system and aimed to supply it. #corroborates (0.80) — Sarah Bakewell, At the Existentialist Café, 1018
• Sartre’s atheism was more thoroughgoing than Heidegger’s or even Nietzsche’s. #expands (0.80) — Sarah Bakewell, At the Existentialist Café, 1017
• Secularism and atheism both reject theism’s ingratitude problem by privatizing God #complicates (0.75) — Wael Hallaq, Restating Orientalism, 989
• Theologians object that subjecting God to the concept denies his creative freedom #complicates (0.70)