谁能帮我翻译一下下面这段短文,谢谢!
Science has been defined as a body of knowledge. But that means about as much as saying that you find all the works of Shakespeare in the dictionary because all the words are there. One of the things which blocked scientific progress for nearly two thousand years was the idea that the Greeks had had the last word for it , that the knowledge existed. And such knowledge ,untested by experiment, could be adapted or interpreted to suit the beliefs of the times, or to conform to doctrine. A “body of knowledge” unchallenged and unreplenished goes sick and may become itself superstition like astrology, which started off as that exercise of observation and reason which we call astronomy, the charting of the stars in their courses. No; science is not just knowledge ; it is knowledge working for its living, correcting itself, and adding itself.