Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor. ...

If we go far enough back, any two people on Earth have a common ancestor. (Carl Sagan)

Carl Sagan Quotes Pictures

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.

Carl Sagan Quotes: If we go far enough back, any two people on Earth have a common ancestor.