What is Jefferson referring to in his quote he wrote in 1776?

In his 1776 quote, Thomas Jefferson is referring to the fundamental principles of individual rights and the pursuit of liberty as outlined in the Declaration of Independence. He emphasizes the inherent rights of individuals to life, liberty, and the pursuit of happiness, asserting that these rights are universal and unalienable. Jefferson's statement reflects Enlightenment ideals, advocating for the notion that governments derive their power from the consent of the governed, and should exist to protect these rights.