Jonathan Haidt. The Righteous Mind: Why Good People Are Divided by Politics and Religion (New York : Pantheon Books, 2012), p. 141:
However, philosophy began retreating from observation and empathy in the nineteenth century, placing ever more emphasis on reasoning and systematic thought. As Western societies became more educated, industrialized, rich, and democratic, the minds of its intellectuals changed. They became more analytic and less holistic.