There is a famous poem about a boy on a train and he tells the man that the river outside is "not pretty"?

Answer 1

I Met A Genius by Charles Bukowski
I met a genius on the train
today
about 6 years old,
he sat beside me
and as the train
ran down along the coast
we came to the ocean
and then he looked at me
and said,
it's not pretty.

it was the first time I'd
realized
that.