As a great man's influence never ends, so also there is not definite finality, no end, to a great survey; it runs along for centuries, ever responsive to the strain of the increasing needs of a growing population and an enlarging domain.
When a 'Life of Brian' comes out with Muhammad in the lead role, directed by an Arab equivalent of Theo van Gogh, it will be a huge step forward.
I reflect back 35 years ago, and look how far we have come in America with our environmental policy to improve the conditions of our air and water, and we have had some real successes.