Vassakāra visits the Buddha at Veḷuvana and tells him that, among brahmins, a man is considered great and wise if:–

he understands a thing as soon as uttered,

has a good memory,

is skilled and diligent in business,

and resourceful and capable in investigation.

The Buddha mentions four other qualities of greatness:

to be given up to the welfare of many,

to be master of the mind in the domain of thought (cetovasippatta),

to be able to enter into the four jhānas at will,

to have comprehended nibbāna by the destruction of the corruptions (āsava).

The Buddha acknowledges, in answer to Vassakāra’s question, that he himself possesses these four qualities. A.ii.35 f.