“What are you - Secret Service?''If I were, I wouldn't admit it.''And you're not admitting it, I notice.”

“Photographs don’t discriminate between the living and the dead. In the fragments of time and shards of light that compose them, everyone is equal. Now you see us; now you don’t. It doesn’t matter whether you look through a camera lens and press the shutter. It doesn’t even matter whether you open your eyes or close them. The pictures are always there. And so are the people in them.”

“Konstantin Tsiolkovsky in Russia, Hermann Olberth in Germany, and Robert Goddard in the United States all came up with an eerily similar concept for using liquid fuel to power rockets for human spaceflight. I've seen this pointed out as an odd coincidence, one of those moments when an idea inexplicably emerges in multiple places at once. But when I read through each of these three men's biographies I discovered why they all had the same idea: all three of them were obsessed with Jules Verne's 1865 novel "De la terre a la lune (From the Earth to the Moon)." The novel details the strange adventures of three space explorers who travel to the moon together. What sets Verne's book apart from the other speculative fiction of the time was his careful attention to the physics involved in space travel -- his characters take pains to explain to each other exactly how and why each concept would work. All three real-life scientists -- the Russian, the German, and the American -- were following what they had learned from a French science fiction writer.”

“What are you - Secret Service?''If I were, I wouldn't admit it.''And you're not admitting it, I notice.”

“In a world that thought itself so wise yet behaved so stupidly, it was possible sometimes to believe that only the mad saw matters as they truly were, that only people like my brother were prepared to admit what they saw from the corner of their eye.”