...justice is rooted in a system of conventions. They arise spontaneously as behavioural equilibria that bring mutual advantage to those adopting them. They protect life, limb, property and the pursuit of peaceful purposes, and require the fulfilment of reciprocal promises.
-Anthony de Jasay, Inspecting the Foundations of Liberalism
Conventions against torts like murder and theft are older than civilization. I think it is a safe bet they will still be around in a thousand years.
A monthly thread for posting rationality-related quotes you've seen recently (or had stored in your quotesfile for ages).