The fundamental principle is that no battle, combat, or skirmish is to be fought unless it will be won.

War is always a struggle in which each contender tries to annihilate the other. Besides using force, they will have recourse to all possible tricks and stratagems to achieve the goal.

The ultimate and most important revolutionary aspiration: to see human beings liberated from their alienation

We have taken plants from the capitalist system where the most important thing was to produce, especially in Cuba.

Its tall chimneys throw up black smoke, impregnating everything with soot, and the miners' faces as they traveled the streets were also imbued with that ancient melancholy of smoke, unifying everything with its grayish monotones, a perfect coupling with the gray mountain days.

I will fight with all the weapons within my reach rather than let myself be nailed to a cross or whatever.

Above all, try always to be able to feel deeply any injustice committed against any person in any part of the world. It is the most beautiful quality of a revolutionary.