按图索骥àn tú suǒ jì
(1) [look for a noble steed with the aidof its picture;look for sth.according to information at one's disposal;look for sth.by a plan chart]∶骥:好马、千里马;索:寻找。原指按照伯乐的《相马经》去寻求好马
(2) [lacking originality;initiative or imagination in doing a job]∶引申为依照既得的线索去寻找目的物。讽喻拘泥成法、食古不化、不知权变的人