"Once, monks, in this same Sāvatthī, there was a certain king, and the
king said to a certain man, 'Come, my good man. Gather together all
the people in Sāvatthī who have been blind from birth.'"
"Responding, 'As you say, your majesty,' to the king, the man — having
rounded up all the people in Sāvatthī who had been blind from birth —
went to the king and on arrival said, 'Your majesty, the people in
Sāvatthī who have been blind from birth have been gathered together.'
"'Very well then, I say, show the blind people an elephant.'
"Responding, 'As you say, your majesty,' to the king, the man showed
the blind people an elephant. To some of the blind people he showed
the elephant's head, saying, 'This, blind people, is what an elephant
is like.' To some of them he showed the elephant's ear, saying, 'This,
blind people, is what an elephant is like.' To some of them he showed
the elephant's tusk... the elephant's trunk... the elephant's body...
the elephant's foot... the elephant's hindquarters... the elephant's
tail... the tuft at the end of the elephant's tail, saying, 'This,
blind people, is what an elephant is like.'
"Then, having shown the blind people the elephant, the man went to the
king and on arrival said, 'Your majesty, the blind people have seen
the elephant. May your majesty do what you think it is now time to
do.'
"Then the king went to the blind people and on arrival asked them,
'Blind people, have you seen the elephant?'
"'Yes, your majesty. We have seen the elephant.'
"'Now tell me, blind people, what the elephant is like.'
"The blind people who had been shown the elephant's head said, 'The
elephant, your majesty, is just like a jar.'
"Those who had been shown the elephant's ear said, 'The elephant, your
majesty, is just like a winnowing basket.'
"Those who had been shown the elephant's tusk said, 'The elephant,
your majesty, is just like plowshare.'
"Those who had been shown the elephant's trunk said, 'The elephant,
your majesty, is just like the pole of a plow.'
"Those who had been shown the elephant's body said, 'The elephant,
your majesty, is just like a granary.'
"Those who had been shown the elephant's foot said, 'The elephant,
your majesty, is just like a post.'
"Those who had been shown the elephant's hindquarters said, 'The
elephant, your majesty, is just like a mortar.'
"Those who had been shown the elephant's tail said, 'The elephant,
your majesty, is just like a pestle.'
"Those who had been shown the tuft at the end of the elephant's tail
said, 'The elephant, your majesty, is just like a broom.'
"Saying, 'The elephant is like this, it's not like that. The
elephant's not like that, it's like this,' they struck one another
with their fists. That gratified the king.
"In the same way, monks, the wanderers of other sects are blind &
eyeless. They don't know what is beneficial and what is harmful. They
don't know what is the Dhamma and what is non-Dhamma. Not knowing what
is beneficial and what is harmful, not knowing what is Dhamma and what
is non-Dhamma, they keep on arguing, quarreling, & disputing, wounding
one another with weapons of the mouth, saying, 'The Dhamma is like
this, it's not like that. The Dhamma's not like that, it's like
this.'"
-Excerpt from Ud 6.4, Sectarians (1)