Full Idea
When one of two non-contemporaneous elements contains the grounds for the other, the former is regarded as the antecedent, and the latter as the consequence
Gist of Idea
When one element contains the grounds of the other, the first one is prior in time
Source
Gottfried Leibniz (Metaphysical Foundations of Mathematics [1715], p.201)
Book Reference
Leibniz,Gottfried: 'Leibniz Selections', ed/tr. Wiener,Philip P. [Scribners 1951], p.201
A Reaction
Bardon cites this passage of Leibniz as the origin of the idea that time's arrow is explained by the direction of causation. Bardon prefers it to the psychological and entropy accounts.