physicsyid: When I say there is no such thing as belief in science, I am specifically not referring to the opinions and methods of scientists themselves. It is natural that those who perhaps devote their life’s work to the development of a certain field or theory will feel an inexplicable affinity toward it. But that is a failing of human beings, not of the study of science itself.
As for making assumptions in the development of scientific principles: I think there is a difference between making an assumption and acknowledging that it is not testable, and labeling said assumption as “belief.” That’s where the idea of uncertainty comes in.
As for your lasts remarks: yes, what you are describing is your belief. But those are beliefs that are not intrinsic to scientific methodology; they are metaphysical/epistemological queries, which, while they may have implications in the long run, do not factor into scientific avenues. Also, I don’t see what job security has to do with anything.