KANT

Every clue on record, most used first

• "Perpetual Peace" thinkeronce

  The New York Times — Friday, 3 September 2010

• Categorical imperative philosopheronce

  The New York Times — Tuesday, 5 June 2007

• "Do what is right, though the world may perish" writeronce

  The New York Times — Wednesday, 30 August 2006

• Hume influenced himonce

  The New York Times — Thursday, 20 June 2002

• "Critique of Judgment" writeronce

  The New York Times — Sunday, 17 February 2002

• Philosophy 101 subjectonce

  The New York Times — Sunday, 14 October 2001

• Königsberg philosopheronce

  The New York Times — Sunday, 20 May 2001

• Writer who coined the phrase "categorical imperative"once

  The New York Times — Saturday, 27 February 1999

• German philosopher Immanuelonce

  The New York Times — Monday, 8 February 1999

• German philosopheronce

  The New York Times — Monday, 28 September 1998

• "Critique of Practical Reason" writeronce

  The New York Times — Wednesday, 1 October 1997

• "Metaphysics of Morals" writeronce

  The New York Times — Saturday, 2 November 1996