Nothing about his life is more strange to [man] or more unaccountable in purely mundane terms than the stirrings he finds in himself, usually fitful but sometimes overwhelming, to look beyond his animal existence and not be fully satisfied with its immediate substance. He lacks the complacency of the other animals: he is obsessed by pride and guilt, pride at being something more than a mere animal, built at falling short of the high aims he sets for himself.

Western society has accepted as unquestionable a technological imperative that is quite as arbitrary as the most primitive taboo: not merely the duty to foster invention and constantly to create technological novelties, but equally the duty to surrender to these novelties unconditionally, just because they are offered, without respect to their human consequences.

The chief enemy of peace is the spirit of unreason itself: an inability to conceive alternatives, an unwillingness to reconsider old prejudices, to part with ideological obsessions, to entertain new ideas or to improve new plans.

Growth and self-transformation cannot be delegated.

The artist does not illustrate science; ... [but] he frequently responds to the same interests that a scientist does, and expresses by a visual synthesis what the scientist converts into analytical formulae or experimental demonstrations.

New York is the perfect model of a city, not the model of a perfect city.

The cities and mansions that people dream of are those in which they finally live.