Fundamentalist:
1. A usually religious movement or point of view characterized by a return to fundamental principles, by rigid adherence to those principles, and often by intolerance of other views and opposition to secularism.
Or slightly generalised:
A __________ movement or point of view characterized by a return to fundamental principles, by rigid adherence to those principles, and often by intolerance of other views and opposition to _________.
Scientist:
A person having expert knowledge of one or more sciences, especially a natural or physical science.
http://dictionary.reference.com/search?q=fundamentalist
http://dictionary.reference.com/search?q=scientist
Anyone you know?
SS