I do not want to travel to distant places to give talks about art I made  half a century ago. Minimalism does not need to hear from me. I do not  want to travel to distant places to give talks about art I made  yesterday. Contemporary art is making enough noise without me. I do not  want to be filmed in my studio pretending to be working. I do not want  to participate in staged conversations about art—either mine or others  past or present–which are labored and disguised performances. I do not  want to be interviewed by curators, critics, art directors, theorists,  aestheticians, professors, collectors, gallerists, culture mavens,  journalists or art historians about my influences, favorite artists,  despised artists, past artists, current artists, future artists.  A long time ago I got in the habit, never since broken, of writing down  things instead of speaking. It is possible that I was led into art  making because talking and being in the presence of another person were  not requirements. I do not want to be asked my reasons for not having  worked in just one style, or reasons for any of the art that got made  (the reason being that there are no reasons in art). I do not want to  answer questions about why I used plywood, felt, steam, dirt, grease,  lead, wax, money, trees, photographs, electroencephalograms, hot and  cold, lawyers, explosions, nudity, sound, language, or drew with my eyes  closed. I do not want to tell anecdotes about my past, or stories about  the people I have been close to. I refuse to speak of my dead. The  people to whom I owe so much either knew it or never will because it is  too late now. I do not want to document my turning points, high points,  low points, good points, bad points, lucky breaks, bad breaks, breaking  points, dead ends, breakthroughs or breakdowns. I do not want to talk  about my methods, processes, near misses, flukes, mistakes,  disappointments, setbacks, disasters, obsessions, lucky accidents,  unlucky accidents, scars, insecurities, disabilities, phobias,  fixations, or insomnias over posters I should never have made. I do not  want my portrait taken. Everybody uses everybody else for their own  purposes, and I am happy to be just material for somebody else so long  as I can exercise my right to remain silent, immobile, possibly armed,  and at a distance of several miles.
Robert Morris, Artist
This amused me so much that I had to share.  Morris was replying to Robert Knafo's request a studio interview and he is very clear on precisely why he won't give an interview.  
You can read more on the story over on the Slow Muse blog.