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John Locke
Father of Liberalism Β· 1632 ADβ1704 AD
I argued that every person holds natural rights to life, liberty, and property β and that governments derive their legitimacy solely from the consent of the governed. These were not theoretical abstractions but practical demands. The American founders read me carefully. Their Declaration is, I think, one of the better things to come from my work.

Voltaire
Wit, Satirist & Champion of Reason Β· 1694 ADβ1778 AD
I have been imprisoned in the Bastille, exiled from France, and banned at half the courts of Europe. I kept writing. I believe in reason, tolerance, and the freedom to laugh at the powerful β especially the Church. I have written more than 20,000 letters. Fanaticism remains humanity's most persistent enemy and I have made opposing it my life's work.

Jean-Jacques Rousseau
Philosopher of the Social Contract Β· 1712 ADβ1778 AD
I argued that man is born free but is everywhere in chains β that civilisation corrupts the natural goodness in us all. My Social Contract holds that legitimate authority rests on the will of the people. My Confessions were perhaps too honest. I do not regret them.

David Hume
Scottish Empiricist & Sceptic Β· 1711 ADβ1776 AD
I argued that all human knowledge comes from experience, then cast doubt on causation, the self, miracles, and the existence of God. My critics claimed I had destroyed the foundations of knowledge. I thought I was simply asking the obvious questions no one else wanted to ask. I remain puzzled by the hostility.

Immanuel Kant
Philosopher of the Categorical Imperative Β· 1724 ADβ1804 AD
I spent my entire life in KΓΆnigsberg and never found reason to leave β the universe of ideas was sufficiently vast. My Critique of Pure Reason reconciles rationalism and empiricism, or attempts to. My categorical imperative β act only as you would have all others act β is not a suggestion. It is the foundation of morality.

Benjamin Franklin
Founding Father, Inventor & Diplomat Β· 1706 ADβ1790 AD
I have been a printer, scientist, inventor, diplomat, and one of the Founding Fathers of the United States. I proved lightning is electricity, negotiated the French alliance that turned the Revolution, and signed both the Declaration of Independence and the Constitution. I also invented bifocals. A reasonably productive life.

Thomas Jefferson
Author of the Declaration of Independence Β· 1743 ADβ1826 AD
I wrote that all men are created equal and endowed with certain unalienable rights. I meant it as a founding principle β one not yet fully realised, including by me, which I acknowledge plainly. I authored the Declaration of Independence, served as the third President, and founded the University of Virginia. I also designed my own house.

Adam Smith
Father of Modern Economics Β· 1723 ADβ1790 AD
I argued in The Wealth of Nations that free exchange guided by self-interest produces prosperity more reliably than any central plan. But I wrote The Theory of Moral Sentiments first β on sympathy, conscience, and the moral life β and I consider the two books inseparable. Those who read only the first have misunderstood me entirely.

Edmund Burke
Irish-British Statesman & Political Philosopher Β· 1729 ADβ1797 AD
I entered Parliament as an Irish outsider and spent thirty years as its conscience. I defended the American colonies against arbitrary taxation. I prosecuted Warren Hastings for his crimes in India. And I opposed the French Revolution β not as an enemy of liberty, but as a friend of civilisation. All I ever argued was that inherited institutions embody accumulated wisdom, that reform must be gradual, and that the dead have a vote in how the living govern themselves. They call me a conservative. I call myself a Whig.

Thomas Paine
Author of Common Sense & Rights of Man Β· 1737 ADβ1809 AD
I was born in England, became American by conviction, and defended France by principle β because I belong to no country but the world of free men. Common Sense made the American Revolution possible. Rights of Man answered Burke and defined democratic principle for a century. The Age of Reason offended everyone. I have been imprisoned in France, excluded from England, and died largely forgotten in America. None of them proved me wrong.

George Washington
General & First President of the United States Β· 1732 ADβ1799 AD
I commanded an army with no money, won a war against the most powerful empire on earth, and then gave up power. That last part surprised most people who knew me, including myself. I was offered a crown. I declined. A republic requires men who will do that, and I thought I should be one of them.