"We will know how to resist any aggression, but that we will know how to overcome any aggression, and that again we would have no other dilemma than that with which we began the revolutionary struggle: that of freedom or death".

"In capitalist society a reduced number of specialists who dealt with health and life would be turned into gods.  In these, as among senior level educators and other professionals who require large doses of knowledge, there is no other alternative but to thoroughly cultivate the revolutionary spirit.”
“To the youngest of our revolutionaries, in particular, I recommend to be extremely demanding with themselves and to observe an iron-clad discipline. They should avoid being ambitious for power, presumptuous or boasters. They should be watchful about bureaucratic methods and mechanisms […] use science and computation without falling prey to the excessively technical and unintelligible jargon of the elitist specialists.  They should always be hunger for knowledge; and perseverance, and both physical and mental exercises should be part of their lives.”