The former conviction that these two kingdoms were wholly different in structure, in function, and in kind of life, was not seriously disturbed by the difficulties which the naturalist encountered when he undertook to define them.
Studying organisms at a molecular level was totally compelling because it was moving from being a naturalist, which was the 19th-century kind of science, to being very focused and really getting to the heart of these molecules.
I don't bill myself as an atheist but as a naturalist. Naturalism is a belief system. A lot of scientists bristle at that. We all have to believe we can find the truth. Evidence is my guide. I rely on observation, experimentation and verification.
The naturalist worldview is a good way to feel grounded and feel part of something that isn't based on fairy tales. It's based on observable facts in the human and in the biological history of the planet. I think that can be a source for comfort.
I call myself a naturalist as opposed to an atheist, but there are different styles. Some people just like to be close to nature. And some people actually worship nature, which is too wishy-washy because - like a lot of religious believers - they don't depend on facts.
A fossil is so powerful. It's moving. This is my ancestor. The naturalist is moved by the fossil... not the cross.
I'm trying to champion the naturalist's worldview and show it's not as heathen as most religious people would make it out to be.
I bill myself as a naturalist because if you say you're a naturalist, it gives people a conversation point to talk about what you actually do believe in, instead of when you say you're an atheist, and it's really just a statement of what you don't believe in.
I don't mind if other people call me an atheist, but I call myself a naturalist. Atheism doesn't tell you much about what I do believe in; the term naturalist opens up the discussion better.