His peculiar gift was the power of holding continuously in his mind a purely mental problem until he had seen it through. - John Maynard Keynes

That she [France] has anything to fear from Germany in the future which we can foresee, except what she may herself provoke, is a delusion. When Germany has recovered her strength and pride, as in due time she will, many years must pass before she again casts her eyes Westwards. Germany's future now lies to the East, and it is in that direction her hopes and ambitions, when they revive, will certainly turn.

There is a respectable and influential body of opinion which, repudiating with vehemence the adoption of either expedient, fulminates alike against Devaluations and Levies, on the ground that they infringe the untouchable sacredness of contract; or rather of vested interest, for an alteration of the legal tender and the imposition of a tax on property are neither of them in the least illegal or even contrary to precedent. Yet such persons, by overlooking one of the greatest of all social principles, namely the fundamental distinction between the right of the individual to repudiate contract and the right of the State to control vested interest, are the worst enemies of what they seek to preserve. For nothing can preserve the integrity of contract between individuals, except a discretionary authority in the State to revise what has become intolerable. The powers of uninterrupted usury are too great. If the accretions of vested interest were to grow without mitigation for many generations, half the population would be no better than slaves to the other half. Nor can the fact that in time of war it is easier for the State to borrow than to tax, be allowed permanently to enslave the tax-payer to the bond-holder. Those who insist that in these matters the State is in exactly the same position as the individual, will, if they have their way, render the continuance of an individualistic society, which depends for its existence on moderation.
These conclusions might be deemed obvious if experience did not show that many conservative bankers regard it as more consonant with their cloth, and also as economising thought, to shift public discussion of financial topics off the logical on to an alleged "moral" plane, which means a realm of thought where vested interest can be triumphant over the common good without further debate. But it makes them unworthy guides in a perilous age of transition. The State must never neglect the importance of so acting in ordinary matters to promote certainty and security in business. But it makes them untrustworthy guides in a perilous age of transition. The State is a sovereign body of which the purpose is to promote the greatest good of the whole. When, therefore, we enter the realm of State action, everything is to be considered and weighed on its merits. Changes in Death Duties, Income Tax, Land Tenure, Licensing, Game Laws, Church Establishment, Feudal Rights, Slavery, and so on through all ages, have received the same denunciations from the absolutists of contract, who are the real parents of Revolution.

the ideas of economists and political philosophers, both when they are right and when they are wrong, are more powerful than is commonly understood. Indeed, the world is ruled by little else. Practical men, who believe themselves to be quite exempt from any intellectual influences, are usually the slaves of some defunct economist.