Na tāvatā dhammadharo
yāvatā bahu bhāsati.
Yo ca appampi sutvāna,
dhammaṃ kāyena passati
sa ve dhammadharo hoti,
yo dhammaṃ nappamajjati.
One is not versed in Dhamma
because one speaks much.
One who, after hearing a little Dhamma,
realizes its truth directly
and is not heedless of it,
is truly versed in the Dhamma.
Dhammapada 19.259
The Dhammapada: The Buddha’s Path of Wisdom,
translated from the Pali by Acharya Buddharakkhita