Ridden with conflicts and lacking the industrial base of communism and nazism, Islamism is nowhere near a danger of the magnitude of those that were … - John N. Gray

How we come to have the world-views we do is an interesting question. No doubt reason plays a part, but human needs for meaning and purpose are usually more important. At times personal taste may be what decides the issue. There is nothing to say that, when all the work of reason is done, only one view of the world will remain. There may be many that fit everything that can be known. In that case you might as well choose the view of the world you find most interesting or beautiful. Adopting a world-view is more like selecting a painting to furnish a room than testing a scientific theory. The test is how it fits with your life.

The irony of scientific progress is that in solving human problems it creates problems that are not humanly soluble. Science has given humans a kind of power over the natural world achieved by no other animal. It has not given humans the ability to remodel the planet according to their wishes. The Earth is not a clock that can be wound up and stopped at will. A living system, the planet will surely rebalance itself. It will do so, however, without any regard for humans.

The belief in unity that has fuelled so many utopian dreams is an effort to reconcile the irreconcilable that ends in repression. Berlin suggests we renounce this venerable faith, and learn how to live with intractable conflict.