It is wiser, I believe, to arrive at theory by way of evidence rather than the other way around.... It is more rewarding, in any case, to assemble the facts first and, in the process of arranging them in narrative form, to discover a theory or a historical generalization emerging of its own accord.

Above all, discard the irrelevant.

Chief among the forces affecting political folly is lust for power, named by Tacitus as "the most flagrant of all the passions." Because it can only be satisfied by power over others, government is its favorite field of exercise. Business offers a kind of power, but only to the very successful at the top, and without the dominion and titles and red carpets and motorcycle escorts of public office.

Government remains the paramount area of folly because it is there that men seek power over others - only to lose it over themselves.

When the gap between ideal and real becomes too wide, the system breaks down.

If power corrupts, weakness in the seat of power, with its constant necessity of deals and bribes and compromising arrangements,corrupts even more.

Policy is formed by preconceptions, by long implanted biases. When information is relayed to policy-makers, they respond in terms of what is already inside their heads and consequently make policy less to fit the facts than to fit the notions and intentions formed out of the mental baggage that has accumulated in their minds since childhood.