Key quote from a much longer article[es] at Basque revolutionary blog Borroka garaia da! (It's time of struggle!)
The vanguard cannot proclaim itself, nor be closed onto itself, nor be an autocracy. It is with the people, it is people and it interprets itself, not to be accommodated into the people but to lead it towards change. It is a rank that this people offers. It arises as a need and turns up in its due time without being forced. Grows in strength if deserving, it is weak if deserving as well.
I just hope that my never-good-enough English honors such a meaningful paragraph with a half-decent translation.