When any theoretical science is unforeseeable-its practical application may not be foreseen at all-Marx is pleased. But when there were discoveries that would have an immediate revolutionary impact on industry and general historical development, his Joy is extraordinary. What's the most accurate rephrase? ['Marx is very interested in scientific discoveries that are closely related to practice and can have a significant impact on it.', 'Marx attaches great importance to every new discovery in the theoretical discipline, and therefore feels heartfelt joy at any new discovery.', 'Marx attaches great importance to the revolutionary impact of his findings on industry and general historical development.', 'Marx has extraordinary foresight and is therefore particularly sensitive to new discoveries in theoretical science.']