Dhammapada Verse 64
Yavajivampi ce balo
na so dhammam vijanati
dabbi suparasam yatha.
Verse 64: A fool, even though he is associated with a wise man all his life,
does not understand the Dhamma, just as a ladle does not know the taste of soup.
The Story of Thera Udayi
While residing at tho Jetavana monastery, the Buddha uttered Verse (64) of
this book, with reference to Thera Udayi, a pretentious bhikkhu.
Thera Udayi would often go and sit on the platform from which learned theras
delivered their discourses. On one occasion, some visiting bhikkhus, taking him
for a very learned thera, put to him some questions on the five aggregates (khandhas).
Thera Udayi could not answer, because he did not know anything of the dhamma.
The visiting bhikkhus were greatly astonished to find that one staying in the
same monastery with the Buddha knew so very little about the khandhas and the ayatanas
(sense-bases and sense-objects).
To them, the Buddha spoke in verse as follows:
Verse 64: A fool, even though he is associated with a
wise man all his life, does not understand the Dhamma, just as a ladle
does not know the taste of soup.
At the end of the discourse, all the visiting bhikkhus attained arahatship.