The three seals of the dharma; three marks of the law. Three aspects of the Buddhist teaching that clearly distinguish it from non-Buddhist teachings: （1） all things are impermanent 诸行无常， all things lack inherent existence （no-self） 诸法无我， and that nirvana is perfect quiesence 涅槃寂静.［法华经 T 262.9.15b7］