If there is something that appears to lie beyond the natural world as it is now imperfectly understood, we hope to eventually understand it and embrace it within the natural. As ever when we unweave a rainbow, it will not become less wonderful.

Presumably there is indeed no purpose in the ultimate fate of the cosmos, but do any of us really tie our life's hopes to the ultimate fate of the cosmos anyway? Of course we don't; not if we are sane. Our lives are ruled by all sorts of closer, warmer, human ambitions and perceptions.

The gravitational constant, if it were off by one part in a hundred million million, then the expansion of the universe after the Big Bang would not have occurred in the fashion that was necessary for life to occur. When you look at that evidence, it is very difficult to adopt the view that this was just chance.

Evolution has no long-term goal. There is no long-distance target, no final perfection to serve as a criterion for selection, although human vanity cherishes the absurd notion that our species is the final goal of evolution.

The machine code of the genes is uncannily computer-like. Apart from differences in jargon, the pages of a molecular biology journal might be interchanged with those of a computer engineering journal.

Faith can be very very dangerous, and deliberately to implant it into the vulnerable mind of an innocent child is a grievous wrong.

Pope Francis seems to be a much nicer man than Pope Benedict, but I'm not sure that his views on things that really matter are all that different. Whereas Benedict was perhaps a wolf in wolf's clothing, Francis is perhaps a wolf in sheep's clothing.