[in 1998] I know my political ideas affect what I write but I've tried to follow the facts wherever they land. Every topic I've written about begins as a question. How do police departments behave? Why do bureaucracies function the way they do? What moral intuitions do people have? How do courts make their decisions? What do blacks want from the political system? I can honestly say I didn't know the answers to those questions when I began looking into them.

The selection process has been powerful enough to produce one indisputable outcome: the family is a universal human institution. . . . In virtually every society into which historians or anthropologists have inquired, one finds people living together on the basis of kinship ties and having responsibility for raising children. . . . Even in societies where men and women have relatively unrestricted sexual access to one another beginning at an early age, marriage is still the basis for family formation. It is desired by the partners and expected by society.

In the long run, the public interest depends on private virtue.

[in 1998] I know my political ideas affect what I write but I've tried to follow the facts wherever they land. Every topic I've written about begins as a question. How do police departments behave? Why do bureaucracies function the way they do? What moral intuitions do people have? How do courts make their decisions? What do blacks want from the political system? I can honestly say I didn't know the answers to those questions when I began looking into them.

We live in a world shaped by the ambiguous legacy of the Enlightenment...[it] enlarged the scope of human freedom, prepared our minds for the scientific method, made man the measure of all things, and placed individual consent front and center on the political stage.

But no one has yet succeeded in reducing the size or scope of the federal government

Window-breaking does not necessarily occur on a large scale because some areas are inhabited by determined window-breakers whereas others are populated by window-lovers; rather, one unrepaired broken window is a signal that no one cares, and so breaking more windows costs nothing.