You know why he stopped writing books. Because he masturbates.

6 seconds sound clip from the Field of Dreams (1989) movie soundboard.

You can hear this line at 00:36:54.670 in the Blu-ray version of the movie.

Quote context

[...]

- And he's widely regarded as the finest satirist of his time.

- Yeah, well I think he's a pervert! Probably a Communist, too!

- What planet are these people from?

- The so-called novels of Terence Mann endorse promiscuity, godlessness, the mongrelization of the races, and disrespect to high-ranking officers of the United States Army.

- And that is why right-thinking school boards all across the country having been banning this man's S-H-I-T since 1969.

- You know why he stopped writing books. Because he masturbates.

- Excuse me, madam. Excuse me.

- Terence Mann was a warm and gentle voice of reason during a time of great madness. He coined the phrase, Make love, not war.

- While other people were chanting, Burn, baby, burn, he was talking about love and peace and understanding.

- I cherished every one of his books, and I dearly wish he had written some more.

[...]