“Either we live by accident and die by accident, or we live by plan and die by plan.”

Philip B. Crosby (1995), Reflections on Quality.

Source: Together is Better: A Little Book of Inspiration

There are no records of Roosevelt having made such a statement, and this is most likely a misquotation of the widely reported comment he made in a speech at the Citadel (23 October 1935):
: Yes, we are on our way back — not just by pure chance, my friends, not just by a turn of the wheel, of the cycle. We are coming back more soundly than ever before because we are planning it that way. Don't let anybody tell you differently.
Misattributed

Letter to Gerald "Ching" Tyrrell, (11 November 1956), p. 28
1990s, The Proud Highway : The Fear and Loathing Letters Volume I (1997)
Context: Hopes rise and dreams flicker and die. Love plans for tomorrow and loneliness thinks of yesterday. Life is beautiful and living is pain. The sound of music floats down a dark street.

The New York Times (1960), as cited in The Beacon Book of Quotations by Women (1992) by Rosalie Maggio, p. 156

SF was an abbreviation for "Supreme Fascist" — the term Erdős often used to refer to God, as quoted in The Man Who Loved Only Numbers : The Story of Paul Erdős and the Search for Mathematical Truth (1998) by Paul Hoffman, p. 4

in an interview http://www.viceland.com/int/v15n12/htdocs/ursula-k-le-guin-440.php?country=uk in Vice Magazine.
Context: Belief in heaven and hell is a big deal in Judaism, Christianity, and Islam, and some forms of doctrinaire Buddhism. For the rest of us it’s simply meaningless. We don’t live in order to die, we live in order to live.