With ritual obligation and revealed law both removed, deist ethics has to be derived rather than received, and in practice it has been derived twice: from the design of nature and from ordinary moral intuition. Paine's formulation in The Age of Reason is the one deists still quote, and it is deliberately unremarkable — justice, mercy, and making fellow creatures happy — because the point is that no revelation was needed to reach it. This is also where deism collides with its critics, who argue that a non-intervening God supplies no reason to be good that atheism does not supply equally. Deists generally answer that the reason was never enforcement in the first place.