Thomas Jefferson's political philosophy was shaped by key factors such as the influence of Enlightenment thought, his experiences in colonial Virginia, and advocacy for individual rights. Jefferson emphasized principles of liberty, equality, and the separation of powers. His role in drafting the Declaration of Independence showcased his belief in natural rights and the necessity of government by consent. Despite his contradictions regarding slavery, Jefferson's vision laid the groundwork for American democracy and raised important questions about the right to self-governance that continue to resonate today.