" Sheer Playfulness and Deadly Seriousness are my closest friends; it is with them that I take those walks in the country at the end of the day. I am also on friendly terms with Deadly Playfulness, Playful Playfulness, Serious Playfulness, Serious Seriousness, and Sheer Sheerness. From the last, however, I get nothing; he just wrings my heart and leaves me speechless. "

― , Conversations with Philip Roth