Quotes from Carl Sagan, Ann Druyan

Science exacts a substantial entry fee in effort and tedium in exchange for its insights.

Birds know, better than humans, not to spoil the nest.

Taken together, the dramatic societal shifts – often in ten generations or less – provide a compelling refutation of the claim that we are condemned, without hope of reprieve, to live out our lives in a barely disguised chimpanzee social order.