Architecture is either the prophecy of an unformed society or the tomb of a finished one.

The cycle of the machine is now coming to an end. Man has learned much in the hard discipline and the shrewd, unflinching grasp of practical possibilities that the machine has provided in the last three centuries: but we can no more continue to live in the world of the machine than we could live successfully on the barren surface of the moon.

We have lost faith in the formal powers of the mind, not, as some suppose, because our universe is too difficult to grasp, but because we lack the inner principle of order.

The last step in parental love involves the release of the beloved; the willing cutting of the cord that would otherwise keep the child in a state of emotional dependence.

In vulgar usage, progress has come to mean limitless movement in space and time, accompanied, necessarily, by an equally limitless command of energy: culminating in limitless destruction.

A certain amount of opposition is a great help to a man. Kites rise against, not with, the wind.

He who touches the soil of Manhattan and the pavement of New York, touches, whenever he knows or not, Walt Whitman.