We travel together, passengers on a little spaceship, dependent upon its vulnerable reserve of air and soil; all committed for our safety to its security and peace; preserved from annihilation only by the care, the work, and I will say, the love we give our fragile craft. We cannot maintain it half fortunate, half miserable, half confident, half despairing, half slave — to the ancient enemies of mankind — half free in the liberation of resources undreamed of until this day. No craft, no crew, can travel safely with such vast contradictions. On their resolutions depends the survival of us all.
Adlai Stevenson II (1900–1965) American politician, diplomat, statesman
Speech (1965-07-09), “Strengthening the International Development Institutions,” sec. 12, United Nations Economic and Social Council, Palais des Nations, Geneva, Switzerland
(Source)
Stevenson was serving as UN Ambassador from the United States. He died of a heart attack on 1965-07-14, while in London after this trip. This was his last public address, and was read into the Congressional Record for the House of Representatives, 89th US Congress (1965-07-15) by Rep. Abraham Multer of New York.

