These same institutions produce quite different effects while they are still being fought for; then they really promote freedom in a powerful way. On closer inspection it is war that produces these effects, the war for liberal institutions, which, as a war, permits illiberal instincts to continue. And war educates for freedom. For what is freedom? That one has the will to self-responsibility. That one maintains the distance which separates us. That one becomes more indifferent to difficulties, hardships, privation, even to life itself. That one is prepared to sacrifice human beings for one's cause, not excluding oneself.

Twilight of the Idols (1888)