To act, in its most general sense, means to take an initiative, to begin... to set something into motion.
Hannah ArendtThat Hegelian dialectics should provide a wonderful instrument for always being right, because they permit the interpretations of all defeats as the beginning of victory, is obvious. One of the most beautiful examples of this kind of sophistry occurred after 1933 when the German Communists for nearly two years refused to recognize that Hitler's victory had been a defeat for the German Communist Party.
Hannah ArendtAt any rate, nothing was more characteristic of him [Walter Benjamin] in the thirties than the little notebooks with black covers which he always carried with him and in which he tirelessly entered in the form of quotations what daily living and reading netted him in the way of "pearls" and "coral." On occasion he read from them aloud, showed them around like items from a choice and precious collection.
Hannah ArendtPredictions of the future are never anything but projections of present automatic processes and procedures, that is, of occurrences that are likely to come to pass if men do not act and if nothing unexpected happens; every action, for better or worse, and every accident necessarily destroys the whole pattern in whose frame the prediction moves and where it finds its evidence.
Hannah ArendtOf all human activities, only labor, and neither action nor work, is unending, progressing automatically in accordance with life itself and outside the range of willful decisions or humanly meaningful purposes.
Hannah Arendt... the loss of belief in future states is politically, though certainly not spiritually, the most significant distinction betweenour present period and the centuries before. And this loss is definite. For no matter how religious our world may turn again, or how much authentic faith still exists in it, or how deeply our moral values may be rooted in our religious systems, the fear of hell is no longer among the motives which would prevent or stimulate the actions of a majority.
Hannah Arendt