Nearly everyone in ancient Egypt exhorted the gods to let the Pharaoh live 'forever. These collective prayers failed. Their failure constitutes data. - Carl Sagan

Human DNA is a ladder a billion nucleotides long. Most possible combinations of nucleotides are nonsense; they would cause the synthesis of proteins that perform no useful function. Only an extremely limited number of nucleic acid molecules are any good for lifeforms as complicated as we. Even so, the number of useful ways of putting nucleic acids together is stupefyingly large- probably far greater than the total number of electrons and protons in the universe. Accordingly, the number of possible individual human beings is vastly greater than the number that have ever lived: the untapped potential of the human species is immense. There must be ways of putting nucleic acids together that will function far better- by any criterion we choose- than any human being who has ever lived. p26

You get to thinking of the Earth as an organism, a living thing. You get to worry about it, care for it, wish it well. National boundaries are as invisible as meridians of longitude, or the Tropics of Cancer and Capricorn. The boundaries are arbitrary. The planet is real. Spaceflight, therefore, is subversive. If they are fortunate enough to find themselves in Earth orbit, most people, after a little meditation, have similar thoughts. The nations that had instituted spaceflight had done so largely for nationalistic reasons; it was a small irony that almost everyone who entered space received a startling glimpse of a transnational perspective, of the Earth as one world. It

Do Buddhists believe in God, or not?” Ellie asked on their way to have dinner with the Abbot. “Their position seems to be,” Vaygay replied dryly, “that their God is so great he doesn’t even have to exist.” As