Implicit in the activist conception of government is the assumption that you can take the good things in a complex system for granted, and just improve the things that are not so good. What is lacking in this conception is any sense that a society, an institution, or even a single human being, is an intricate system of fragile inter-relationships, whose complexities are little understood and easily destabilized.

Is Reality Optional?: And Other Essays (ed. Hoover Inst Press, 1993)