Our posturings, our imagined self-importance , the delusion that we have some privileged — Carl Sagan
The universe is a pretty big place. If it’s just us, seems like an awful waste of space. — Carl Sagan
Perhaps, in retrospect, there would be little motivation even for malevolent extraterrestrials — Carl Sagan
The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars. — Carl Sagan