Principle 3: Kingdom of ends : Kant: Kant taught that morality is not just a matter of individual behaviour. Ethical behaviour should apply to society as a whole - leaders and members. The same rules should apply to all, regardless of ages, sex, class, race, etc. Kant was trying to encourage equality. Christianity: Christians would accept this principle because: Jesus told us to 'love one another', 'treat others as you wish to be treated', God created everyone equally so everyone deserves to be treated equally. Christians have the responsibility to treat everyone with respect or dignity and to promote justice for all.