[他山之石可以攻玉, tā shān zhī shí kě yǐ gōng yùㄊㄚ ㄕㄢ ㄓ ㄕˊ ㄎㄜˇ ㄧˇ ㄍㄨㄥ ㄩˋ] lit. the other mountain's stone can polish jade (成语 saw); to improve oneself by accepting criticism from outside; to borrow talent from abroad to develop the nation effectively
[工欲善其事,必先利其器 / 工慾善其事,必先利其器, gōng yù shàn qí shì, bì xiān lì qí qìㄍㄨㄥ ㄩˋ ㄕㄢˋ ㄑㄧˊ ㄕˋ, ㄅㄧˋ ㄒㄧㄢ ㄌㄧˋ ㄑㄧˊ ㄑㄧˋ] To do a good job, an artisan needs the best tools (成语 saw). Good tools are prerequisite to the successful execution of a job