This brings us to the question of sin and virtue. It may be said that sin and virtue are standards of good and evil made by the teachers of religion, that by these standards of morals the world is kept in order, and that it is the breaking of this order which causes the decline of religion, with wars, famines, and disasters as a result. Messengers are sent from time to time to uphold this order, and spiritual controllers are appointed in every part of the earth. In all ages people have decided that one particular thing is sin, and another virtue. And whenever the wise have done this they have been right, and yet they differ from one another. This is because if a greater light is thrown on this subject, although it is still possible to look at sin in the light of sin, and at virtue in the light of virtue, yet very often one can also see that under the cover of virtue there was a sin, and under the cover of sin there was a virtue.