Many prominent scientists have pointed out that philosophy is of no benefit to science. Stephen Hawking asserts: Philosophy is dead! Sciences use conceptions like natural laws, matter, nature, theories, etc. But science is also confronted with questions such as: "What is a natural law?" "What is nature?" "What is matter?" and "What is a scientific theory?" These (metatheoretical) questions exceed the sphere of competence of science – they are items of the philosophy of science. Philosophy of science is a metatheory of science. The Philosophy of science overlaps epistemology, ontology, and metaphysics by exploring whether scientific results are true, or whether entities like quarks or electrons really exist. More detailed investigations bri...