Originally Posted by
luhsun
It is because voltaire had the money and the privilege to choose his meals or friends etc that he could afford to be an intellectual. When one is rich enough, or has enough friends, and life is no longer a struggle (or the converse, when the stoic embraces the life of a hermit) then one's backside get itchy and voila... an intellectual.
Which brings us back to the original question.. almost writers are/were intellectuals.. because otherwise, as jdi mentioned, they would be out in the real world trying to change the world.