I can think and play stuff in classical music that possibly violinists who didn't have access to other types of music could never do. It means I'm more flexible within classical music, to be a servant to the composer.
When we talk about stem cells, we are actually talking about a complicated series of things, including adult stem cells which are largely cells devoted to replacing individual tissues like blood elements or liver or even the brain.
Universalism as an ideal is as old as nay, is probably much more ancient than the Christian ideal.