Meanings of ceaseless unrest in английском

One-half the income of those railroads which we let fall into disuse came from the ceaseless unrest.

It is the bitter sorrow which refuses to be healed, which fills the heart with a ceaseless unrest.

This fact in itself is sufficient to account for the ineffectiveness, the despondencies, the insincerities and ceaseless unrest of Western civilisation in the nineteenth century.

Year by year they had pushed the frontier westward, pricked onward by a ceaseless unrest, "the old land hunger" that never was appeased.