Indeed, evaluating the impact of any research project is difficult. As Marc Kirschner, a professor at Harvard Medical School, pointed out in a thoughtful editorial in the journal Science: “One may be able to recognize good science as it happens, but significant science can only be viewed in the rear-view mirror.”
事实上，评估任何研究项目的影响是十分困难的。哈佛医学院的马克·柯什纳（Marc Kirschner）在《科学》杂志中发表了一篇思想深刻的社论，他指出，“你也许能在好科学发生时认出它，但重要的科学只能在后视镜里看到。”