Full Idea
The waves increase by degrees, approaching to the hour and day proportionately larger or smaller in volume as they are attracted by the star we call the moon, whose power controls the ocean's surge.
Gist of Idea
The ocean changes in volume in proportion to the attraction of the moon
Source
Seneca the Younger (On Providence [c.60], §1)
Book Reference
Seneca: 'Dialogues and Essays', ed/tr. Davie,John [Penguin 2007], p.4
A Reaction
....just in case anyone thought that Isaac Newton had invented gravity.