Since in every European country between 1870 and 1914 there was a war party demanding armaments, an individualist party demanding ruthless competition, an imperialist party demanding a free hand over backward peoples, a socialist party demanding the conquest of power and a racialist party demanding internal purges against aliens - all of them, when appeals to greed and glory failed, invoked Spencer and Darwin, which was to say science incarnate.

Above all, do not talk yourself out of good ideas by trying to expound them at haphazard meetings.

The nation in arms is virtually a communist state: the people must be paid wages and fed and protected and regimented behind the lines as much as on the front. Minds must be kept loyal and at the right pitch of hate, so that successive drafts of fighters are accepted without murmurings. Letters and newspapers must be censored while the propaganda mill grinds on. As for decisions of strategy and overall command, they must please many masters: dissenters in the cabinet, the heads of the allied states and public opinion. Hence failures must be disguised or concealed.

Schools are not intended to moralize a wicked world, but to impart knowledge and develop intelligence, with only two social aims in mind: prepare to take on one's share in the world's work, and perhaps in addition, lend a hand in improving society, after schooling is done.

Above all, the ability to feel the force of an argument apart from the substance it deals with is the strongest weapon against prejudice.

Idealism springs from deep feelings, but feelings are nothing without the formulated idea that keeps them whole.

Political correctness does not legislate tolerance; it only organizes hatred.