Some People argued that the contribution done by scientists and engineers is more imporant than artists and writers'.I agree with it.

Through the river of human's history,what made the greateat progress for the development are scientists and engineers.For example,Yuan Longping's Hybrid rice has prevented thousands of people from hunger .Nan Rendong's FAST is going to explore the deepest of the universe.By comparsion,artists and writers' works are aimed to make people relaxed and happier.Scientists and engineers are devoted to making wealth and develop human's intelligence and ability.

All in all,I prefer to the scientists and engineers. They are human's superheroes in reality.