Each thing is of like form from everlasting and comes round again in its cycle.

— Aurelius, Marcus

What has been will be again. What has been done will be done again... [Ecclesiastes 1:9]

— Bible

All motion is cyclic. It circulates to the limits of its possibilities and then returns to its starting point.

— Collier, Robert

Everything comes if a man will only wait.

— Disraeli, Benjamin

That which the fountain sends forth returns again to the fountain.

— Longfellow, Henry Wadsworth

Events tend to recur in cycles...

— Stone, W. Clement

In all things there is a law of cycles.

— Tacitus, Publius Cornelius

By law of periodical repetition, everything which has happened once must happen again and again -- and not capriciously, but at regular periods, and each thing in its own period, not another's and each obeying its own law.

— Twain, Mark