Answer:Jefferson's natural-law theory is Stoical.
One of the most significant achievements of Jefferson's first administration was the purchase of the Louisiana Territory from France for $15 million in 1803.
Explanation: Jefferson's natural-law theory is Stoical, not Hobbesian or Rousseauian. For Jefferson, the basal laws of nature that obtain when man is in the state of nature are roughly the self-same laws that obtain in civil society. They are also roughly the same basal laws that obtain between states.