“It was funny how the old practices always came around again. It was the rhythm of human enterprise to invent and worship some new approach, to fully reject it a generation later, to realize the need for it again a generation or two after that and then hastily reinvent it as new, usually without its original elegance. Scientists hated to look backward for anything.”

“Sooner or later, everything old is new again.”

“Like the generations of leaves, the lives of mortal men. Now the wind scatters the old leaves across the earth, now the living timber bursts with the new buds and spring comes round again. And so with men: as one generation comes to life, another dies away.”

“It's funny, but certain faces seem to go in and out of style. You look at old photographs and everybody has a certain look to them, almost as if they're related. Look at pictures from ten years later and you can see that there's a new kind of face starting to predominate, and that the old faces are fading away and vanishing, never to be seen again.”

“Every generation laughs at the old fashions, but follows religiously the new.”

“Here was a new generation, shouting the old cries, learning the old creeds, through a revery of long days and nights; destined finally to go out into that dirty gray turmoil to follow love and pride; a new generation dedicated more than the last to the fear of poverty and the worship of success; grown up to find all Gods dead, all wars fought, all faiths in man shaken...”