"But there is a lesser-known term in Islam — one that has the capacity to change the world for good.
The idea is ‘ijtihad’, Islam’s tradition of questioning and reinterpreting. And it is absolutely fundamental to the spirit of the Qur’an. Islam’s scripture contains three times as many passages urging Muslims to think and rethink than verses promoting blind worship.
That’s nice in theory, but what about in fact? In the Islam of a millennium ago, ijtihad flourished. It was no coincidence that Islamic civilisation led the world in curiosity, creativity and ingenuity. But then the sun set on Islam’s golden age. Invaders from North Africa pillaged the pluralism of Muslim Spain. From Cordoba to Baghdad, much of the Islamic empire lapsed into defensiveness. Out of 135 schools of Sunni thought, just four survived. The gates of ijtihad narrowed and in some places closed, legitimising rigid readings of the Qur’an. To this day, Muslims still struggle with the idea of independent thought.
But a new generation of Muslims are pushing the boundaries. In growing numbers, we are speaking our truths to self-appointed authorities, be they our parents or their imams."
http://www.spectator.co.uk/features/9169991/reclaiming-islam/