No faith needed, at least for a philosophically grounded scientist. We are never going to get at some essential true nature through science. What we can do is expand our reality and capabilities in the world by creating useful models, and creating new models when the old ones are no longer sufficient.
Almost every person, scientist or no, has personal beliefs in addition to understanding of some of the scientific models we use. The two shouldn't be conflated though.
Almost every person, scientist or no, has personal beliefs in addition to understanding of some of the scientific models we use. The two shouldn't be conflated though.