The Lessons of History - by Will and Ariel Durant
Nature smiles at the union of freedom and equality in our utopias. For freedom and equality are sworn and everlasting enemies, and when one prevails the other dies. Leave men free, and their natural inequalities will multiply almost geometrically, as in England and America in the nineteenth century under laissez-faire. To check the growth of inequality, liberty must be sacrificed, as in Russia after 1917. Even when repressed, inequality grows; only the man who is below the average in economic ability desires equality; those who are conscious of superior ability desire freedom; and in the end superior ability has its way. Utopias of equality are biologically doomed, and the best that the amiable philosopher can hope for is an approximate equality of legal justice and educational opportunity. A society in which all potential abilities are allowed to develop and function will have a survival advantage in the competition of groups.
The South creates the civilizations, the North conquers them, ruins them, borrows from them, spreads them: this is one summary of history.
Intellect is a vital force in history, but it can also be a dissolvent and destructive power. Out of every hundred new ideas ninety-nine or more will probably be inferior to the traditional responses which they propose to replace. No one man, however brilliant or well-informed, can come in one lifetime to such fullness of understanding as to safely judge and dismiss the customs or institutions of his society, for these are the wisdom of generations after centuries of experiment in the laboratory of history. So the conservative who resists change is as valuable as the radical who proposes it--perhaps as much more valuable as roots are more vital than grafts. It is good that new ideas should be heard, for the sake of the few that can be used; but it is also good that new ideas should be compelled to go through the mill of objection, opposition, and contumely; this is the trial heat which innovations must survive before being allowed to enter the human race. It is good that the old should resist the young, and that the young should prod the old; out of this tension, as out of the strife of the sexes and the classes, comes a creative tensile strength, a stimulated development, a secret and basic unity and movement of the whole.
Puritanism and paganism--the repression and the expression of the senses and desires--alternate in mutual reaction in history. Generally religion and puritanism prevail in periods when the laws are feeble and morals must bear the burden of maintaining social order; skepticism and paganism (other factors being equal) progress as the rising power of law and government permits the decline of the church, the family, and morality without basically endangering the stability of the state. In our time the strength of the state has united with the several forces listed above to relax faith and morals, and to allow paganism to resume its natural sway.