Thus in a live civilisation there is always an element of unrest. For sensitiveness to ideas means curiosity, adventure, change. Civilised order survives on its merits, and is transformed by its power of Recognizing its imperfections. The essence of life is to be found in the frustrations of established order. The art of progress is to preserve order amid change, and to preserve change amid order.
Life refuses to be embalmed alive.
The more prolonged the halt in some unrelieved system of order, the greater the crash of the dead society. There are two principles inherent in the very nature of things, recurring in some particular embodiments whatever field we explore - the spirit of change, and the spirit of conservation. There can be nothing real without both. Mere change without conservation is a passage from nothing to nothing. . . . Mere conservation without change cannot conserve.