Liberals have a three-foundation morality, whereas conservatives use all six. Liberal moral matrices rest on the Care/harm, Liberty/oppression, and Fairness/cheating foundations, although liberals are often willing to trade away fairness (as proportionality) when it conflicts with compassion or with their desire to fight oppression. Conservative morality rests on all six foundations, although conservatives are more willing than liberals to sacrifice Care and let some people get hurt in order to achieve their many other moral objectives.