Who said "Memory is the only treasure of the poor"?

This quote is attributed to Rodolfo Walsh.

Memory is the only treasure of the poor - Rodolfo Walsh

"Memory is the only treasure of the poor"

Rodolfo Walsh

Novelist Journalist Argentine 1927–1977

"Journalism is the first draft of history"

"To know is to act"

"The truth is like a lion; you don't have to defend it. Let it loose; it will defend itself"

"Words are the only bullets that pierce the heart without leaving a mark"