"The essential condition for life is the existence of sharp energy gradients."

“Maybe it’s time we humans abandoned our species-specific chauvinism—our petty outrage that the Universe has unfolded in a way that doesn’t suit us.”

““But Parz was better than nothing: it offered stability, regulation, a framework to live in. People gripe about their tithes—and nobody’s going to pretend that the Committee gets it right all the time—but most of us would prefer taxes to living wild. With all respect to you, my friend.” He bit into his cake. “And that’s still true today; as true as it ever was.”

“For the genes it made sense, of course. Otherwise it would not have happened.”

“‘He set no great value on money, or, perhaps, to speak properly, he set on it no more than its true value.’”

“Mind you, flatulence was one skill he had bettered as he had got older.”

“It’s all a bit anarchic, I suppose, but it’s also highly effective. Flexible, responsive, mobile, heuristic, with intelligence distributed to the lowest level...A bit like an ideal human society, I suppose; free individuals seeking out ways to advance the common good.”