science moves forward,they say,not so much through the insights of great men of genius as because of more ordinary things like improved techniques and tools.
他们说：科学进步与其说得益于科技天才们的真知灼见,不如说是技术和工具等寻常事物不断改进的必然结果.
明白一个知识点就可以了,这里在考察not so much .A.. as ..B.（与其说是A,不如说是B）