Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves. ...

Our very existence in that distant time requires that we will have changed our institutions and ourselves. (Carl Sagan)

Carl Sagan Quotes Pictures

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.

Carl Sagan Quotes: Our very existence in that distant time requires that we will have changed our institutions and ourselves.