The Noble Mahāyāna Sūtra “The Questions of the Nāga King Sāgara”

In this very short sūtra, the Buddha explains to a nāga king and an assembly of monks that reciting the four aphorisms of the Dharma is equivalent to recitation of all of the 84,000 articles of the Dharma. He urges them to make diligent efforts to engage in understanding the four aphorisms (also called the four seals), which are the defining philosophical tenets of the Buddhist doctrine: (1) all compounded phenomena are impermanent; (2) all contaminated phenomena are suffering; (3) all phenomena are without self; (4) nirvāṇa is peace.