Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it. ...

In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it. (Carl Sagan)

Carl Sagan Quotes Pictures

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.

Carl Sagan Quotes: In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature . They can't help it.