Whether I serve one or two terms in the Presidency, I will find myself at the end of that period at what might be called the awkward age — too old to begin a new career and too young to write my memoirs.

Quoted in A Thousand Days: John F. Kennedy in the White House, Arthur Schlesinger (Boston: Houghton Mifflin Company, 1965), page 1017. According to a footnote in Schlesinger's manuscript (1st draft, page 1378), this was stated on February 13, 1961.