Thomas Jefferson was the third President of the United States. Although he kept slaves, Jefferson is famed as a champion of political and religious freedom. Jefferson loved liberty in every form and he worked for freedom of speech, press, religion, and civil liberties.Click to see full answer. Herein, what did Thomas Jefferson believe in?Thomas Jefferson believed strongly in religious freedom and the separation of church and state. While President, Jefferson was accused of being a non-believer and an atheist.Beside above, what are 5 interesting facts about Thomas Jefferson? 5 Surprising Facts About Thomas Jefferson He was a (proto) archaeologist. Mastodon Mandible. He was an architect. Detail of Jefferson’s Floor Plan for Monticello. He was a wine aficionado. Monticello’s Wine Cellar. He was a founding foodie. He was obsessed with books. Subsequently, question is, what did Thomas Jefferson do? Thomas Jefferson was the primary draftsman of the U.S. As the third president of the United States, Jefferson stabilized the U.S. economy and defeated pirates from North Africa during the Barbary War. He was responsible for doubling the size of the United States by successfully brokering the Louisiana Purchase.Why Thomas Jefferson was a good president?Jefferson has been a great democratic icon precisely because he so eloquently articulated fundamental tensions in Americans’ understanding of the people’s power. The United States had “the strongest Government on earth,” Jefferson told his fellow Americans in his first Inaugural Address on March 4, 1801.