Full Idea
A true proposition is consistent with every other true proposition: no truth is contradicted by another.
Gist of Idea
A true proposition is consistent with every other true proposition
Source
Roger Scruton (Modern Philosophy:introduction and survey [1994], 9.1)
Book Reference
Scruton,Roger: 'Modern Philosophy: introduction and survey' [Sinclair-Stevenson 1994], p.99
A Reaction
Interesting. It resembles the rule that if you always tell the truth you don't need to remember what you said. Close to the heart of the concept of truth. Coherence and correspondence.