| law(noun, rule, notion, fundamental, theory) |
| categorical imperative(noun, expression, law, utilitarianism) |
| principle(noun, law, rule, belief, standard) |
| altruistic ethics |
| axiom(noun, law, rule, notion, fundamental) |
| canon(noun, law, rule, notion, fundamental) |
| convention(noun, rule, belief, notion, principle) |
| form(noun, law, rule, notion, fundamental) |
| formula(noun, law, rule, notion, fundamental) |
| imperative |
| maxim(noun, law, rule, notion, fundamental) |
| moral philosophy |
| norm |
| postulate(noun, law, rule, notion, fundamental) |
| principium(noun, law, rule, notion, fundamental) |
| proposition(noun, law, rule, notion, fundamental) |
| regulation(noun, law, rule, notion, fundamental) |
| rule(noun, law, notion, fundamental, theory) |
| self-evident truth(expression, theory, guesstimate, premise) |
| standard(noun, honor, rule, belief, notion) |