I don't think it matters whether you ask non-scientists or scientists when it comes to this particular question.
I agree people who are non-scienctists have beliefs based on faith, etc. Scientists do too, except they don't call it faith. Or they punt. 
I don't think there is a modern scientific explanation of the origin of life on earth. We've never been able to recreate life in a lab in a way that explains how it all started.
I've also said before that whatever theory someone has about the origin of life sounds like science fiction (regardless of whether it's science/secular/religious based).
So that brings us back the original question:
Theories are often based on a mixture of fact and faith.
such as?
And before you say you've already answered it and we are going in circles, keep in mind the many questions i have asked to clarify your assertion:.....
What is a modern scientific explanation of the origin of life and how does it incorporate faith?
were you just talking about ancient theories?
Can you come up with a more current "Modern" example that shows: Theories are often based on a mixture of fact and faith?
Can you list some scientific theories that are partially based on faith?
Can you list some scientific theories that are 100% based on faith?
Can you name some theories that involve faith?
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You seem to be unwilling to answer these questions
Am i to conclude that you are not saying modern science and its method is a mix of faith and facts?