"It is ridiculous to set a detective story in New York City. New York City is itself a detective story."

"Many homicidal lunatics are very quiet, unassuming people. Delightful fellows."

"I like to write. I like to read. I like to think."

"Every murderer is probably somebody's old friend."

"One must accept the fact that we have only one companion in this world, a companion who accompanies us from the cradle to the grave - our own self. Get on good terms with that companion - learn to liv…"