While the content of many dreams seem haphazard, others are remarkably well structured; these dreams have a remarkable resemblance to drama. - Carl Sagan

There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly and compassionately with one another and to preserve and cherish that pale blue dot, the only home we’ve ever known.

Ethnocentrism, xenophobia and nationalism are these days rife in many parts of the world. Government repression of unpopular views is still widespread. False or misleading memories are inculcated. For the defenders of such attitudes, science is disturb­ing. It claims access to truths that are largely independent of ethnic or cultural biases. By its very nature, science transcends national boundaries. Put scientists working in the same field of study together in a room and even if they share no common spoken language, they will find a way to communicate. Science itself is a transnational language. Scientists are naturally cosmo­politan in attitude and are more likely to see through efforts to divide the human family into many small and warring factions. 'There is no national science,' said the Russian playwright Anton Chekhov, 'just as there is no national multiplication table.' (Likewise, for many, there is no such thing as a national religion, although the religion of nationalism has millions of adherents.)

"Al parecer anhelamos un privilegio, merecido no por nuestros esfuerzos, sino por nacimiento, digamos que por el mero hecho de ser humanos y de haber nacido en la Tierra. Podríamos llamarla la noción antropocéntrica, "centrada en el ser humano".

Está noción alcanza su culminación en la idea de que fuimos creados a imagen y semejanza de Dios: "El Creador y Gobernador de todo el universo es precisamente como yo. ¡Caramba, qué coincidencia! ¡Qué adecuado y satisfactorio!" El filósofo griego del siglo VI a. J.C. Jenófanes comprendió la arrogancia de esta perspectiva:

Los etíopes plasman a sus dioses negros y de nariz respingona; los tracianos dicen de los suyos que tienen los ojos azules y el pelo rojo... Sí, y si bueyes, caballos o leones tuvieran manos y pudieran pintar con ellas, y producir obras de arte como los hombres, los caballos pintarían a sus dioses con forma de caballo, los bueyes con forma de buey..."