There are four sources from which the human face and form are derived, and these account for the changes which take place in them. These are:

1. the inherent attributes of his soul;
2. the influence of his heritage;
3. the impressions of his surroundings; and lastly
4. the impression of himself and of his thoughts and deeds, of the clothes he wears, the food he eats, the air he breathes, and the way he lives.