Conceptions, ideas and means of expression undergo perpetual changes in the world of art.

Ambiguity and perpetual change are the key words.

But on Mars the landscape is a matter of perpetual change.

Did these perpetual changes prove the popularity or the unpopularity of being Paley?

Renewal is the theme, so the author has designed the book to get readers to love, and even embrace, perpetual change.

She is ambitious, restless, and anxious for perpetual change.

This perpetual change and development is the basic reason why advertising is such a stimulating business in which to work.

The perpetual change of the great swell abolished all sense of direction.

A perpetual and hurrying change is visible in all things.

These spheres are all in perpetual change and motion, as is the sphere of fire, the sun.