They differ among themselves because of the sources 1 of their clay (from which they have been created). This is because they are either from saltish soil or sweet soil or from rugged earth or soft earth. They, resemble each other on the basis of the affinity of their soil and differ according to its difference. Therefore, sometimes a person of handsome features is weak in intelligence, a tall statured person is of low courage, a virtuous person is ugly in appearance, a short statured person is far-sighted, a good-natured person has an evil trait, a person of perplexed heart has bewildering mind and a sharp-tongued person has a wakeful heart.
(1) Al-Yamani, al-Taraz;