One of the great arts in living is to learn the art of accurately appraising values. Everything that we think, that we earn, that we have given to us, that in any way touches our consciousness, has its own value. These values are apt to change with the mood, with time, or because of circumstances. We cannot safely tie to any material value. The values of all material possessions change continually, sometimes over night. Nothing of this nature has any permanent set value. The real values are those that stay by you, give you happiness and enrich you. They are the human values.