Truth as a value as a measure of epistemic ability? Truth = metaphysical concept, non material. Survival coded into our genes. Certain behaviours "pre-installed" due to survival . (Holding breath under water etc). Ability to learn requires ability to discern truth from falsities, as new behaviour undergoes normative claims, which in turn require differentiating good and bad, which we determine by observing reality and learn and adopt from our surroundings.