He who would live must fight. He who doesn't wish to fight in this world, where permanent struggle is the law of life, has not the right to exist.
Those who want to live, let them fight, and those who do not want to fight in this world of eternal struggle do not deserve to live.
Kill or be killed, eat or be eaten, was the law; and this mandate, down out of the depths of Time.
They are based on the universal assumption that a nation, in order to find outlets for expanding population and increasing industry, or simply to ensure the best conditions possible for its people, is necessarily pushed to territorial expansion and the exercise of political force against others.... It is assumed that a nation's relative prosperity is broadly determined by its political power; that nations being competing units, advantage in the last resort goes to the possessor of preponderant military force, the weaker goes to the wall, as in the other forms of the struggle for life.
the reasons nations arm and war
The whole of organic nature on our planet exists only by a relentless war of all against all. ... The raging war of interests in human society is only a feeble picture of an unceasing and terrible war of existence which reigns throughout the whole of the living world.
Each organic being is striving to increase in a geometrical ratio . . . each at some period of its life, during some season of the year, during each generation or at intervals, has to struggle for life and to suffer great destruction . . . The vigorous, the healthy, and the happy survive and multiply.
Nothing is easier than to admit in words the truth of the universal struggle for life, or more difficult - at least I have found it so - than constantly to bear this conclusion in mind...We behold the face of nature bright with gladness...We do not see, or we forget, that the birds which are idly singing round us mostly live on insects and seeds, and are thus constantly destroying life.
This survival of the fittest which I have here sought to express in mechanical terms, is that which Mr. Darwin has called "natural selection", or the preservation of favoured races in the struggle for life.
Nothing is easier than to admit in words the truth of the universal struggle for life, or more difficult--at least I have found it so--than constantly to bear this conclusion in mind.
Not only does every animal live at the expense of some other animal or plant, but the very plants are at war.... The individuals of a species are like the crew of a foundered ship, and none but good swimmers have a chance of reaching the land.
A perfect life is a contradiction in terms. Life itself is a state of continuous struggle between ourselves and everything outside. Every moment we are fighting actually with external nature, and if we are defeated, our life has to go. It is, for instance, a continuous struggle for food and air. If food or air fails, we die. Life is not a simple and smoothly flowing thing, but it is a compound effect. This complex struggle between something inside and the external world is what we call life. So it is clear that when this struggle ceases, there will be an end of life.
The true clerc is Vauvenargues, Lamarck, Fresnel, Spinoza, Schiller, Baudelaire, César Franck, who were never diverted from single-hearted adoration of the beautiful and the divine by the necessity of earning their daily bread. But such clercs are inevitably rare. The rule is that the living creature condemned to struggle for life turns to practical passions, and thence to the sanctifying of those passions.