the work is purportedly named after wei liao, who is said to have either been a student of lord shang or an important advisor during the qin dynasty. however, there is little evidence to support either view. the only textual reference to wei liao outside of the "wei liaozi" is in the "records of the grand historian (shiji)", where he is cast as an advisor to qin shi huang, the youthful king of the state of qin. since the wei liaozi contains almost no actual strategy, it is thought that wei liao was a theoretician. questions of authorship are further clouded by the fact that two different works of the same name appear to have been known during the han dynasty. the work assumed its present form around the end of the fourth century bc. a new version of the "wei liaozi" was discovered in 1972 at a han dynasty tomb in linyi. it is more philosophical in tone than the received text, but differs significantly in only a few places.