It rarely adds anything to say, In my opinion --not even modesty. Naturally a sentence is only your opinion; and you are not the Pope.
Paul Goodman (1911 - 1972) was an American poet, writer, and public intellectual. Goodman is now mainly remembered as a notable political activist on the pacifist Left in the 1960s and early 70s. Politically he described himself as an anarchist, sexually as pederast (Rossman, 1976, pp.87-92), and professionally as a "man of letters". Less widely known is his role as a co-founder of Gestalt Therapy.