“Above all, always be capable of feeling deeply any injustice committed against anyone, anywhere in the world.”

“There are no boundaries in this struggle to the death. We cannot be indifferent to what happens anywhere in the world, for a victory by any country over imperialism is our victory; just as any country's defeat is a defeat for all of us.”

“Let me say, at the risk of seeming ridiculous, that the true revolutionary is guided by great feelings of love.”

“If you tremble with indignation at every injustice then you are a comrade of mine.”

“Be realistic, demand the impossible!”

“What do we leave behind when we cross each frontier? Each moment seems split in two: melancholy for what was left behind and the excitement of entering a new land.”

“When asked whether or not we are Marxists, our position is the same as that of a physicist, when asked if he is a “Newtonian” or of a biologist when asked if he is a “Pasteurian.”