Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands. ...

We are the first species to have taken our evolution into our own hands. (Carl Sagan)

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Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.

Carl Sagan Quotes: We are the first species to have taken our evolution into our own hands.