[525] [86] Then a certain bhikkhu approached the Blessed One; having approached and paid homage to the Blessed One, he sat down to one side. Sitting to one side, that bhikkhu said this to the Blessed One: "'A learner, a learner (sekha),' venerable sir, it is said. In what way, venerable sir, is one a learner?"
"'He trains,' bhikkhu — therefore he is called a learner. And in what does he train? He trains in the higher virtue (adhisīla), he trains in the higher mind (adhicitta), and he trains in the higher wisdom (adhipaññā). 'He trains,' bhikkhu — therefore he is called a learner.
For the learner who is training,
following along the straight path,
knowledge (ñāṇa) of destruction arises first;
immediately thereafter, final knowledge (aññā);
thereafter, for one liberated by final knowledge,
one who is such (tādino), there arises indeed the knowledge:
'Unshakable is my liberation,'
with the destruction of the fetter of existence (bhava-saṃyojana)."
Sekha Sutta, the Second.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.