Violence is an expression of impotence.

The chief reason warfare is still with us is neither a secret death-wish of the human species, nor an irrepressible instinct of aggression, nor, finally and more plausibly, the serious economic and social dangers inherent in disarmament, but the simple fact that no substitute for this final arbiter in international affairs has yet appeared on the political scene.

Totalitarianism is never content to rule by external means, namely, through the state and a machinery of violence; thanks to its peculiar ideology and the role assigned to it in this apparatus of coercion, totalitarianism has discovered a means of dominating and terrorizing human beings from within.

To act, in its most general sense, means to take an initiative, to begin... to set something into motion.

There is no lasting happiness outside the prescribed cycle of painful exhaustion and pleasurable regeneration, and whatever throws this cycle out of balance – poverty and misery where exhaustion is followed by wretchedness instead of regeneration, or great riches and an entirely effortless life where boredom takes the place of exhaustion and where the mills of necessity, of consumption and digestion, grind an impotent human body mercilessly and barrenly to death – ruins the elemental happiness that comes from being alive.

Nietzsche ... has caused [philosophers] so much confusion.

the touchstone of a free act - from the decision to get out of bed in the morning or take a walk in the afternoon to the highest resolutions by which we bind ourselves for the future - is always that we know that we could also have left undone what we actually did.