Science replaces private prejudice with public, verifiable evidence.

Evil…doesn’t mean doing things that have bad consequences for people. It means private thoughts and actions that are not to “the Christian majority’s” private liking.

Part of the appeal was that Medawar was not only a Nobel Laureate, but he seemed like a Nobel Laureate; he was everything one thought a Nobel Laureate ought to be. If you have ever wondered why scientists like Popper, try Medawar's exposition. Actually most Popperian scientists have probably never tried reading anything but Medawar's exposition.

The chicken is only an egg’s way for making another egg.

Indeed, organizing atheists has been compared to herding cats, because they tend to think independently and will not conform to authority. But a good first step would be to build up a critical mass of those willing to 'come out,' thereby encouraging others to do so. Even if they can't be herded, cats in sufficient numbers can make a lot of noise and they cannot be ignored.

When I am dying, I should like my life taken out under general anaesthetic, exactly as if it were a diseased appendix.

You can't even begin to understand biology, you can't understand life, unless you understand what it's all there for, how it arose - and that means evolution.