One may well ask that if there is such a complete and comprehensive spiritual equality between the two sexes, why is this identical treatment not found in other rights, duties and privileges. Muslims and especially non-Muslims question why men go out to work while women are encouraged to stay at home, why women have to wear the Hijab (veil), why a brother receives a larger share of inheritance than his sister, why a man can be a ruler but a woman can not, etc., and they then conclude that Islam treats women as inferior beings. Laws can never be discussed without being explained first, so we must first consider the fundamental Islamic ethos that men and women are two different yet complementary sexes. It is an established medical fact that men and women have different biological compositions and temperaments. Allah the All-Mighty created and knows this biological difference better than we do, and has thus assigned to men and women the roles that each excels in due to its nature. Neither gender is inferior or superior to the other; instead they complement each other like the two halves of a whole. In everyday life we see that society consists of many different kinds of people, all of whom play their particular roles to keep society intact. The farmer and the doctor make different contributions to the society, but both are equally important. Each excels in his own field, and each provides a service for the other. Similarly, men and women are different sexes and play vital roles in their own areas of excellence.