
“One's life has value so long as one attributes value to the life of others.”
As quoted in Successful Aging : A Conference Report (1974) by Eric Pfeiffer, p. 142
Attributed
“One's life has value so long as one attributes value to the life of others.”
1980s, First term of office (1981–1985), Abortion and the Conscience of the Nation (1983)
“A man who dares to waste one hour of time has not discovered the value of life.”
volume I, chapter VI: "The Voyage", page 266 http://darwin-online.org.uk/content/frameset?pageseq=284&itemID=F1452.1&viewtype=image; letter to sister Susan Elizabeth Darwin (4 August 1836)
The Life and Letters of Charles Darwin (1887)
Source: The Life & Letters of Charles Darwin
As of a Trumpet, 1968, p. 43
As of a Trumpet
Source: Existentialism Is a Humanism (1946), p. 58