ANART

Set to 4 different clues across 4 published puzzles, most often "Conversation is ___ in which a man has all mankind for his competitors": Ralph Waldo Emerson — The New York Times, Thursday, 26 February 2009.

5 letters

Every clue on record, most used first

"Conversation is ___ in which a man has all mankind for his competitors": Ralph Waldo Emersononce
The New York Times — Thursday, 26 February 2009
"Dying / Is ___, like anything else": Sylvia Plathonce
The New York Times — Monday, 26 February 2007
Not a science, but___once
The New York Times — Thursday, 18 January 1996
"Cookery is become _____": Burtononce
The New York Times — Thursday, 22 December 1994