I recommend the current HNN "History Doyens" piece on Joyce Appleby. She influenced many libertarian-oriented historians that attended grad school in the 1980s and 1990s. Two choice selections:

"Since we toss around complex with the same abandon as nuanced, I'll define how I think of complexity in history. Complexity in human affairs arises from the fact that human beings are never single-minded in their efforts and decisions, and events never slide along a predictable cause and effect continuum. Getting across this point has always been more important to me than raising consciousness about past injustices or rallying students to the heroism of dissenters and reformers."

"A hundred and fifty years ago, historians exalted the nation's commercial values as proof of democratic vigor; since the Progressives they have focused more upon those groups that failed to benefit from a profit-driven economy. Perhaps now, as the twentieth century closes, we may be ready to explore the social complexity of our entrepreneurial system while shedding the celebratory and compensatory burdens of our predecessors."