Full Idea
Without a grasp of the concept of truth, not only language, but thought itself, is impossible.
Gist of Idea
Without truth, both language and thought are impossible
Source
Donald Davidson (Truth Rehabilitated [1997], p.16)
Book Reference
Davidson,Donald: 'Truth, Language and History' [OUP 2005], p.16
A Reaction
Davidson never mentions animals, but I like this idea because it points to importance of truth for animals as well. I say that truth is relevant to any mind that makes judgements - and quite small animals (e.g. ants and spiders) make judgements.