“I'm sure a mathematician would claim that 0 and 1 are both very interesting numbers.”

Anyway, he hasn't called.
Live and Laughing (2008)

"Al Gore: 'The Assault on Reason' in America" on Things Considered at NPR (25 May 2007) http://www.npr.org/templates/story/story.php?storyId=10440121.
Context: I'm involved in a different kind of campaign myself — to make sure that the climate crisis is the number one issue on the agenda of candidates in both parties. And I know that sounds like an unrealistic goal right now, but I will wager that by the time the elections of November 2008 come around, it will be the number one issue in both parties.

Reported as a comment on "the number of Iraqi dead from the combined allied air and ground campaign" by Tyler, Patrick. "After The War; Powell Says U.S. Will Stay In Iraq 'For Some Months.'" New York Times, March 23 1991, pp. 1,4. http://www.nytimes.com/1991/03/23/world/after-the-war-powell-says-us-will-stay-in-iraq-for-some-months.html
2000s

Preface p. v
A History of Greek Mathematics (1921) Vol. 1. From Thales to Euclid

As quoted in "'Frasier' leaving the building" by Andy Walton at CNN (3 May 2004) http://articles.cnn.com/2004-05-03/entertainment/finale.frasier_1_frasier-niles-and-daphne-frasier-crane/2?_s=PM:SHOWBIZ

As expressed in Galileo's Finger: The Ten Great Ideas of Science (2003) by Peter Atkins, Ch. 10 "Arithmetic : The Limits of Reason", p. 333
Peano axioms
Context: 1. 0 is a number.
2. The immediate successor of a number is also a number.
3. 0 is not the immediate successor of any number.
4. No two numbers have the same immediate successor.
5. Any property belonging to 0 and to the immediate successor of any number that also has that property belongs to all numbers.

Source: Interesting Times