If there was something that everyone agreed was fair, then such definition would be meaningful and non-empty.
ONLY if the agreement was based on identifiable principles. If the definition consists of nothing but the observation that people agree, then it provides information about people, not the ostensible subject.
ONLY if the agreement was based on identifiable principles. If the definition consists of nothing but the observation that people agree, then it provides information about people, not the ostensible subject.