War is nothing but a continuation of politics with the admixture of other means. - Carl von Clausewitz

War is merely the continuation of politics by other means

Pity the theory which sets itself in opposition to the mind! It cannot repair this contradiction by any humility, and the humbler it is so much the sooner will ridicule and contempt drive it from real life.

A conqueror is always a lover of peace (as Bonaparte always asserted of himself); he would like to make his entry into our state unopposed; in order to prevent this, we must choose war, and therefore also make preparations, that is in other words, it is just the weak, or that side which must defend itself, which should be always armed in order not to be taken by surprise; so it is willed by the art of war. (Original German: "Der Eroberer ist immer friedliebend (wie Bonaparte auch stets behauptet hat), er zöge ganz gern ruhig in unseren Staat ein; damit er dies aber nicht könne, darum müssen wir den Krieg wollen und also auch vorbereiten, d. h. mit anderen Worten: es sollen gerade die Schwachen, der Verteidigung Unterworfenen, immer gerüstet sein und nicht überfallen werden; so will es die Kriegskunst.")