道之所存，师之所存

dào zhī suǒ cún , shī zhī suǒ cúndaozhisuocun,shizhisuocun

1. If sb has grasped the truth before you, take him as your teacher (Tang dynasty essayist Han Yu 韓愈|韩愈[Han2 Yu4]).
2. We should learn from one who knows the way.

Study it in Yanamino