https://www.youtube.com/watch?v=uz6MFZxeW_YAn interesting if perhaps a little bombastic video;
'Hey. Do you mind if I tell you a story? One you might not have heard. All the elements in your body were forged many many millions of years ago in the heart of a faraway star that exploded and died. That explosion scattered those elements across the desolations of deep space. After so, so many millions of years, these elements came together to form new stars and new planets. And on and on it went. The elements came together and burst apart, forming shoes and ships and sealing wax and cabbages and kings. Until, eventually, they came together to make you. You are unique in the universe. There is only one Merry Galel. And there will never be another. Getting rid of that existence isn't a sacrifice, it's a waste!'
It's worth noting of course that the humanism of Doctor Who is something that can be seen over the whole fifty years of the show. The Doctor doesn't 'save' people; he believes in people and the significance of each and every one of them. It is true that Matt Smith alongside show-runner Steven Moffat and Russell T Davies before him are atheist but many of the writers and contributors before them were humanist including the wonderful late Douglas Adam, actress Lalla Ward, Tom Baker etc. Doctor Who has never shied away from embracing the talents of all who contribute to it and is certainly not exclusive in it's world view. I also think as television goes it is probably not only the most humanist mainstream programmes but also the most queer, even under Moffat which is managed so beautifully and effortlessly dealing with sexuality in a way that US television still finds a little clunky.