Carl Sagan
American astronomer, cosmologist, astrophysicist and author
Lived from: 1934 - 1996
Category: Scientists | Writers (Contemporary) Country: United States
Born: 9 november 1934 Died: 20 december 1996
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It is clear that the nations of the world now can only rise and fall together. It is not a question of one nation winning at the expense of another. We must all help one another or all perish together.
― Carl Sagan -
We have heard the rationales offered by the nuclear superpowers. We know who speaks for the nations. But who speaks for the human species? Who speaks for Earth?
Cosmos (1980)― Carl Sagan -
Widespread intellectual and moral docility may be convenient for leaders in the short term, but it is suicidal for nations in the long term. One of the criteria for national leadership should therefore be a talent for understanding, encouraging, and making constructive use of vigorous criticism.
Billions and Billions: Thoughts of Life and Death at the Brink of the Millenium (1997) Ch. 14, The Common Enemy― Carl Sagan
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