Thomas Jefferson: Biography, Quotes, and Legacy

Thomas Jefferson is one of those historical figures who seems to live in two centuries at once — the Age of Enlightenment and the flawed early years of American slavery. Most people know him as the author of the Declaration of Independence, but his writings on liberty clash starkly with his slaveholding reality.

Born: April 13, 1743 ·
Died: July 4, 1826 ·
Presidency: 3rd U.S. President (1801–1809) ·
Known For: Author of the Declaration of Independence ·
Children: 6 with Martha Wayles; 4+ with Sally Hemings ·
Slaves Owned: Over 600 during lifetime

Eight quick facts, one pattern: the man who wrote “all men are created equal” owned hundreds of people and shaped a nation with one hand while holding human property with the other.

What was Thomas Jefferson most famous for?

His Role in the American Revolution

• Jefferson was a Virginia delegate to the Continental Congress and was chosen to draft the Declaration of Independence in 1776 (National Archives, the U.S. federal record-keeper).
• He also served as governor of Virginia during the Revolutionary War (1779–1781) (Britannica, the authoritative encyclopedia).

Author of the Declaration

• The document’s preamble — with its claim that “all men are created equal” — became the most quoted passage in American political history (Wikipedia, the free encyclopedia).
• Jefferson considered the Declaration his greatest achievement, even asking that his tombstone mention only that, the Virginia Statute for Religious Freedom, and the University of Virginia (Monticello, Jefferson’s estate).

Third President of the United States

• He served two terms from 1801 to 1809, during which he completed the Louisiana Purchase in 1803, doubling the size of the nation (U.S. State Department Office of the Historian).
• He also launched the Lewis and Clark expedition to explore the new territory (Library of Congress, the U.S. national library).

What did Jefferson say about slavery?

Jefferson’s Writings on Slavery

• In Notes on the State of Virginia (1785), Jefferson wrote that slavery was a “blot” on American society and speculated that Black people were inferior in reason and beauty — a contradiction that scholars still dissect (National Park Service, the U.S. federal agency).
• He called the institution a “moral depravity” but never publicly advocated for immediate abolition (PBS, the American public broadcaster).

The Paradox of Liberty and Enslavement

• Jefferson owned more than 600 enslaved people over his lifetime; according to the National Park Service, he “favored emancipation but never freed a single slave” (National Park Service, the U.S. federal agency managing Jefferson Memorial).
• He did free a few slaves after his death — but only five, all from the Hemings family (Monticello, Jefferson’s estate).

Proposals for Emancipation

• Jefferson proposed gradual emancipation and colonization (sending freed slaves to Africa), but these plans were never realized (Britannica, the authoritative encyclopedia).
• His economic dependence on slave labor at Monticello made any moral stance practically impossible to act on (University of Notre Dame Cushwa Center).

What did Jefferson say about Jesus?

Jefferson’s Religious Views

• Jefferson was a deist — he believed in a creator who set the universe in motion but did not intervene in human affairs (National Park Service, the U.S. federal agency).
• He admired Jesus’ moral teachings but rejected miracles, the Trinity, and the divinity of Christ (Public Discourse, an academic journal).

The Jefferson Bible

• Jefferson created his own version of the Gospels, cutting out all supernatural events and leaving only the ethical teachings of Jesus (Library of Congress, the U.S. national library).
• He called it “The Life and Morals of Jesus of Nazareth” and it remains a testament to his rationalist faith (Monticello, Jefferson’s estate).

Correspondence on Christianity

• In a letter to Joseph Priestley, Jefferson wrote that “Christianity neither is, nor ever was, a part of the common law” — though the quote is often taken out of context (Monticello, Jefferson’s estate).
• He famously declared, “I have sworn upon the altar of God eternal hostility against every form of tyranny over the mind of man” (National Park Service, the U.S. federal agency).

What did Jefferson say before he died?

Final Illness and July 4, 1826

• Jefferson died at Monticello on July 4, 1826 — the 50th anniversary of the Declaration of Independence (Library of Congress, the U.S. national library).
• He had been ill for weeks with severe diarrhea and a urinary tract infection (Monticello, Jefferson’s estate).

Reported Last Words

• According to his physician and family, Jefferson’s last words were “Is it the Fourth?” — a question about the date, though no firm eyewitness account exists (Monticello, Jefferson’s estate).
• The story is widely repeated but remains historically disputed (National Park Service, the U.S. federal agency).

Coinciding with John Adams’ Death

• John Adams died the same day, hours later, reportedly saying “Thomas Jefferson survives” — unaware that Jefferson had already passed (Britannica, the authoritative encyclopedia).
• The coincidence of both Founding Fathers dying on the Fourth of July cemented their legendary status (National Archives, the U.S. federal record-keeper).

Which president fathered a child at 70?

Thomas Jefferson and Sally Hemings

• Evidence strongly suggests that Jefferson fathered children with Sally Hemings, an enslaved woman at Monticello who was also the half-sister of his late wife Martha (The British Academy, the UK’s national humanities institution).
• DNA testing in 1998 linked Jefferson’s male line to Eston Hemings, Sally’s youngest son (PBS, the American public broadcaster).

Historical and DNA Evidence

• Jefferson was at Monticello during the times when Sally conceived, and records show he never allowed her to be “given away” or sold (Monticello, Jefferson’s estate).
• The British Academy notes that “the evidence is now overwhelming” that Jefferson was the father of her children (The British Academy, the UK’s national humanities institution).

The Hemings Children

• Historians believe Sally Hemings had at least six children, four of whom survived to adulthood (American Heritage, a history magazine).
• All four were given their freedom by Jefferson’s will or allowed to “escape” shortly after his death (Monticello, Jefferson’s estate).

What is Thomas Jefferson’s legacy?

Founding Father and Democratic Ideals

• Jefferson’s words in the Declaration have inspired human rights movements worldwide (National Constitution Center).
• He championed the Virginia Statute for Religious Freedom, a model for the First Amendment (Library of Congress, the U.S. national library).

Controversies over Slavery and Race

• The same man who wrote “all men are created equal” owned people and wrote racist passages in Notes on the State of Virginia (National Park Service, the U.S. federal agency).
• Modern scholarship increasingly focuses on this hypocrisy, with historians like those at the University of Notre Dame arguing that “Jefferson’s life requires rethinking because of slavery and religion together” (University of Notre Dame Cushwa Center).

Jefferson Memorial and Continuing Influence

• The Jefferson Memorial in Washington, D.C., opened in 1943 and features inscriptions of his most famous quotes (National Park Service, the U.S. federal agency).
• John F. Kennedy famously remarked at a 1962 White House dinner: “I think this is the most extraordinary collection of talent, of human knowledge, that has ever been gathered at the White House, with the possible exception of when Thomas Jefferson dined alone” (Wikipedia, the free encyclopedia).

Timeline: Key events in Jefferson’s life

Thirteen milestones, one narrative: a revolutionary who built a nation and a plantation, each tied to the other by the same hands.

The pattern: Jefferson moved from revolutionary pamphleteer to national leader to educational founder — all while never dismantling the system of slavery that supported every step.

Clarity check: what we know and what remains uncertain

In his own words and others’

Four perspectives that capture the range of Jefferson’s influence and the debates around his life.

We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.

Thomas Jefferson, Declaration of Independence, 1776 (National Archives, the U.S. federal record-keeper)

I have sworn upon the altar of God eternal hostility against every form of tyranny over the mind of man.

Thomas Jefferson, letter to Benjamin Rush, quoted by National Park Service, the U.S. federal agency

Indeed I tremble for my country when I reflect that God is just: that his justice cannot sleep forever.

Thomas Jefferson, Notes on the State of Virginia, 1785 (National Park Service, the U.S. federal agency)

I think this is the most extraordinary collection of talent, of human knowledge, that has ever been gathered at the White House, with the possible exception of when Thomas Jefferson dined alone.

John F. Kennedy, remarks at a dinner honoring Nobel laureates, 1962 (Wikipedia, the free encyclopedia)

Related reading: **Roy Cohn** · **John Wayne**

For a deeper look at Jefferson’s complex relationship with slavery, see Jeffersons complex relationship with slavery.

Frequently asked questions