Contemporary philosopher David Benatar has advanced the self-evidently controversial claim that “coming into existence is always a harm.” Benatar’s argument turns on the basic asymmetry between pleasure and pain, an asymmetry he seeks to explain by the principle that those who never exist cannot be deprived. Benatar’s import is almost incredible: humans should cease to procreate immediately, thereby engendering the extinction of the species—a view known as “anti-natalism.” According to many of his readers, the ancient Hebrew sage Qoheleth expresses a pessimistic nihilism that runs as thick as Benatar’s. Prima facie grounding for this assertion is that Qoheleth, like Benatar, raises the issue of whether coming into existence may be a harm—an...