Human relations are so integrated that no state can have complete freedom of action under its principles unless the same principles are not in force … - Syed Abul Ala Maududi

The Qur'an is not a book of abstract theories and cold ideas, which one can grasp while seated in a cozy armchair. Nor is it merely a religious book like other religious books, whose meanings can be grasped in seminaries and oratories. On the contrary, it is a Book which contains a message, an invitation, which generates a movement. The moment it began to be sent down, it impelled a quiet and pious man to abandon his life of solitude and confront the world that was living in rebellion against Allah. It inspired him to raise his voice against falsehood, and pitted him in a grim struggle against the lords of disbelief, evil and iniquity. One after the other, from every home, it drew every pure and noble soul, and gathered them under the banner of truth. In every part of the country, it made all the mischievous and the corrupt to rise and wage war against the bearers of the truth.

God has prohibited the unrestricted intermingling of the sexes and has prescribed purdah [a word of Persian origin meaning the religious and social practice of female seclusion]

The power to rule over the earth has been promised to the whole community of believers; it has not been stated that any particular person or class among them will be raised to that position. From this it follows that all believers are repositories of the Caliphate.