blog.cosmos-institute.org/p/reading-list-ai-and-the-future-of

The cited book edition is Existentialism Is a Humanism by Jean-Paul Sartre, with an introduction by Annie Cohen-Solal. The post’s parenthetical note says the quote is by “Satre,” but the philosopher’s name is Sartre.

This is directly confirmed by Yale University Press’s page for the edition, which lists:

• "Existentialism Is a Humanism by Jean-Paul Sartre"
• "Introduction by Annie Cohen-Solal"

So the attribution note contains a spelling error in the author’s name.