Let us face squarely the paradox that the world which goes to war is a world, usually, genuinely desiring peace. War is the outcome, not mainly of evil intentions, but on the whole, of good intentions which miscarry or are frustrated. It is made, not usually by evil men knowing themselves to be wrong, but is the outcome of policies pursued by good men usually passionately convinced that they are right.

Peace and the Public Mind (1935)