Enlightenment rationalism grounded morality in medical science, reversing the older Christian order.

Evidence

That shift also served to separate healthy from unhealthy states of mind and behavior, and led—in the thought of Enlightenment rationalism—to the doctrine that morality be based on medical science rather than the other way around, as the older Christian view had it. — Talal Asad, Formations of the Secular, 220

Categorization

Category: Causal Relationships

• XREF: Connects to the recurring inversion between moral categories and medical categories — how ‘sickness’ and ‘sin’ trade explanatory roles — relevant to the reader’s broader secularization material.
• SEED: An essay angle: the shift from sin-language to sickness-language as a diagnostic of secularization, and what that inversion cost us.

Related

• Enlightenment rationalism made medical science the ground of morality. (similarity 0.95)