A soldier is very material, but he are fights for immaterial reasons. If you must know what everything is made of, and have a scientific deffinition for everything, you have lost the most beautiful things- like the entire world of art. You have lost freedom and justice, truth and honor, even colors must be questioned. Science is not, by its own deffinition, a fact. The basic building blocks cannot be proven, because they are not observable.
Science is built on logical theories that appear to be true.
By the rules of science, science must itself be questioned. If I denied all the evidence no one could prove to me that prove you exhist. This has nothing to do with truth, it is only a way of guessing at the truth. We all know science is flawless, and we as human beings have nothing more to learn about it. All is presently understood about the universe.