Jaspers held that genuine philosophical truth requires shared communication and communion

Evidence

His communicative ideal fed into a whole theory of history: he traced all civilisation to an ‘Axial Period’ in the fifth century BC, during which philosophy and culture exploded simultaneously in Europe, the Middle East and Asia, as though a great bubble of minds had erupted from the earth’s surface. ‘True philosophy needs communion to come into existence,’ he wrote, and added, ‘Uncommunicativeness in a philosopher is virtually a criterion of the untruth of his thinking.’ — Sarah Bakewell, At the Existentialist Café, 277

Categorization

• XREF: Jaspers’ communicational ideal and Axial Period theory stand in productive contrast to Heidegger’s solitary hut philosophy — a useful framework distinction within the reader’s existentialism survey. — connects to: Jaspers demanded genuine communication as Germany’s post-war moral reckoning — Sarah Bakewell, At the Existentialist Café: Freedom,…, 611; Jaspers’ wife Gertrud co-developed his philosophy through daily dialogue — Sarah Bakewell, At the Existentialist Café: Freedom,…, 276; Philosophical language must interweave expression and communication, neither reducible to the other — Dirk Braunstein, Adorno’s Critique of Political Economy, 1014 (+1 more)

Broader Connections

• Jaspers demanded genuine communication as Germany’s post-war moral reckoning #expands (1.00) — Sarah Bakewell, At the Existentialist Café, 611
• Jaspers’ wife Gertrud co-developed his philosophy through daily dialogue #exemplifies (0.80) — Sarah Bakewell, At the Existentialist Café, 276
• Philosophical language must interweave expression and communication, neither reducible to the other #expands (0.80) — Dirk Braunstein, Adorno’s Critique of Political Economy, 1014
• Instrumentalized communication destroys the possibility of shared truth #qualifies (0.80) — James W. Carey, Communication as Culture- Essays on…, 378