Final answer:
Denis Diderot's ideal society was governed by a council of philosophers and intellectuals.
Step-by-step explanation:
Denis Diderot's ideal society was a society governed by a council of philosophers and intellectuals. Diderot was a prominent figure of the Enlightenment movement and believed in the power of reason and knowledge. He envisioned a society where decision-making was in the hands of intellectuals who would use their wisdom and expertise to guide and govern society.