Roderick Firth (January 30, 1917 – December 22, 1987)[1] was an American philosopher.
He was Professor of Philosophy at Harvard University from 1953 until his death.
His thesis was entitled Sense-Data and the Principle of Reduction.
He taught at Brown University before joining the Harvard faculty in 1953.
[1] Firth is noted for his defense of the ideal observer theory in ethics[2] and for his exploration of radical empiricism.