Persons of deep faith have been, are, and can be great scientists.
See, for example, Scientific Geniuses and Their Jesuit Collaborators[1]. Not to mention that the author's field (physical cosmology) was deeply influenced by a Catholic priest-scientist[2]. There are numerous other examples spanning the last few centuries, including our own.
Faith and reason ought to go together and are entirely compatible with one another – at least that's the Catholic view, not new but recently articulated by Pope St. John Paul II.[3]
[1] http://www.strangenotions.com/scientific-geniuses-and-their-...
[2] https://en.wikipedia.org/wiki/Georges_Lema%C3%AEtre
[3] http://w2.vatican.va/content/john-paul-ii/en/encyclicals/doc...