Introduction Thomas Jefferson spent most of his career in public office and made his greatest contributions to his country in the field of politics. He loved liberty in every form, and he worked for freedom of speech, press, religion, and other civil liberties. Jefferson was the 3rd president of the United States and best remembered as a great president and as the author of the Declaration of Independence. Jefferson's interests and talents covered an amazing range. He became one of the leading American architects of his time and designed the Virginia Capital, the University of Virginia, and his own home, Monticello. He greatly