San Quentin, what good do you think you do?
Do you think I'll be different when you're through?

from Johnny Cash – San Quentin Lyrics on Rap Genius

Meaning

Criticism of the prison system in general, which is pretty fucked up in this country.

San Quentin is especially messed. In 2005 a gov’t report said San Quentin is “old, antiquated, dirty, poorly staffed, poorly maintained with inadequate medical space and equipment and overcrowded.”

To help improve the meaning of these lyrics, visit “San Quentin” by Johnny Cash Lyrics and leave a comment on the lyrics box