Smith was born in Lancaster, Pennsylvania. During the American Revolutionary War, he served in the Continental Army and participated in the Battle of Brandywine. He graduated from Princeton University in 1781 and began to practice law in Maryland. Smith became the Presidential Elector in the Electoral College for Maryland in 1789, then a member of state's senate from 1793 to 1795, and finally a member of Maryland's house of delegates from 1796 to 1800. President Thomas Jefferson appointed him as Secretary of the Navy in July 27, 1801. On March 2, 1805, the Senate confirmed the appointments of Smith as United States Attorney General and Jacob Crowninshield as Secretary of the Navy. However, Crowninshield declined his appointment, so Smith briefly served as both Attorney General and Secretary of the Navy. Eventually, President Jefferson appointed John Breckinridge to replace Smith as Attorney General and Smith resumed his role as a full-time Secretary of the Navy. Smith finally left the office of Secretary of the Navy with the end of President Jefferson's administration on March 4, 1809. Jefferson's successor, President James Madison, immediately appointed Smith as Secretary of State, an office which he held from March 6, 1809 until his resignation on April 1, 1811.
Smith became the president of the not-yet-fully-organized American Bible Society in 1813. In 1818, he became the founding president of the Maryland Agriculture Society and afterwards retired to a more private life where he enjoyed his wealth. Robert Smith died in Baltimore, Maryland on November 26, 1842.
Smith is one of the fiercest opponents of abortion in either house of Congress.
Smith also was a prime mover of legislation to ban partial-birth abortions; the House voted to override Clinton's vetoes, but Smith's side fell a few votes short of the two-thirds needed in the Senate.
Smith won a victory in 2004 when a provision stating that state and local governments could not force hospitals and care providers to perform abortions was put in the omnibus appropriation.
Smith was one of those 18th century Scottish moral philosophers whose impulses led to our modern day theories; his work marks the breakthrough of an evolutionary approach which has progressively displaced the stationary Aristotelian view.
Smith lead a quiet and sheltered life; he lived with his mother (she lived to be ninety) and remained a bachelor all his life.
Adam Smith's approach to his work was first to do a historical study of his subject, and then to advance the area, often building on the work of his contemporaries: he was well aware of the work done by Montesquieu and the French Physiocrats.