
“If they give you ruled paper, write the other way.”
As quoted in the epigraph in Fahrenheit 451 (1953) by Ray Bradbury; Susie Salmon also uses this quote in The Lovely Bones, and Daniel Quinn published a book in 2007 with the title If They Give You Lined Paper, Write Sideways (2007)
Spanish: "Si os dan papel pautado, escribid por el otro lado" (If they give you lined paper, write on the other side)
"If they give you ruled paper, write the other way" is often attributed to William Carlos Williams who was contemporary with JRJ.
Misattributed