I am not absolutely positive there is no god. Only in the sense that I'm not absolutely positive there is no large china teapot in orbit in the solar system.

There is economics in biology, nothing is free, everything has to be paid for, there are costs as well as benefits to everything in life, for example, there was never sufficient natural selection pressure to develop better eyes, individuals could earn other things like smiley smiles rather than waste energy & time on better eyes.

I find many of answers in the spiritual realm. That in no way compromises my ability to think rigorously as a scientist.

I don't think God is an explanation at all. It's simply redescribing the problem. We are trying to understand how we have got a complicated world, and we have an explanation in terms of a slightly simpler world, and we explain that in terms of a slightly simpler world and it all hangs together down to an ultimately simple world. Now, God is not an explanation of that kind. God himself cannot be simple if he has power to do all the things he is supposed to do.

I think the important thing to learn is that we can retain a sentimental loyalty to the cultural and literary traditions of, say, Judaism, Anglicanism or Islam, and even participate in religious rituals such as marriages and funerals, without buying into the supernatural beliefs that historically went along with those traditions. We can give up belief in God while not losing touch with a treasured heritage.

However statistically improbable the entity you seek to explain by invoking a designer, the designer himself has got to be at least as improbable. God is the Ultimate Boeing 747

We have seen that living things are too improbable and too beautifully 'designed' to have come into existence by chance.