The Righteous Mind: Why Good People are Divided by Politics and Religion

by Jonathan Haidt

Plato believed that reason could and should be the master; Jefferson believed that the two processes were equal partners (head and heart) ruling a divided empire; Hume believed that reason was (and was only fit to be) the servant of the passions.

The main way that we change our minds on moral issues is by interacting with other people. We are terrible at seeking evidence that challenges our own beliefs, but other people do us this favor, just as we are quite good at finding errors in other people’s beliefs. When discussions are hostile, the odds of change are slight. The elephant leans away from the opponent, and the rider works frantically to rebut the opponent’s charges. But if there is affection, admiration, or a desire to please the other person, then the elephant leans toward that person and the rider tries to find the truth in the other person’s arguments. The elephant may not often change its direction in response to objections from its own rider, but it is easily steered by the mere presence of friendly elephants (that’s the social persuasion link in the social intuitionist model) or by good arguments given to it by the riders of those friendly elephants (that’s the reasoned persuasion link).

Progress happens when theories are tested, supported, and corrected by empirical evidence, especially when a theory proves to be useful—for

Everyone cares about fairness, but there are two major kinds. On the left, fairness often implies equality, but on the right it means proportionality—people should be rewarded in proportion to what they contribute, even if that guarantees unequal outcomes.