David Pietrusza said this quote

“ John F. Kennedy is, in reality, a deeply serious man, reflective in his mental habits, historically minded, and given to seeing men and nations and events in the sobering context that history provides.As a human being, he is often humorous, easily bored by total routine but open to all fresh experiences, careless of the superficialities of life, warmly loyal to his friends, and oddly detached about himself. His most curious trait, in fact, is his way of discussing his most vital affairs with the dry humor and cool analytical remoteness that most people reserve for the affairs of others. – Joseph Alsop ”