As generative AI quietly rewires the architecture of medical knowledge, a perspective in Nature reminds us that the oldest imperatives of education — mentorship, judgment, and ethical accountability — have not been made obsolete but made more urgent. The technology changes what competence looks like, yet it cannot substitute for the human capacity to question, to discern, and to know the limits of one's own understanding. Medical schools now face a civilizational question dressed in institutional clothing: not whether to adopt these tools, but whether they will preserve the wisdom traditions t