諸もろ刃はの剣つるぎ

expression, noun

double-edged sword

Idiomatic expression meaning something that has both advantages and disadvantages, or can be both beneficial and harmful.

• インターネットは諸もろ刃はの剣つるぎだ。便べん利りな反はん面めん、危き険けんも伴ともなう。

  The internet is a double-edged sword. While convenient, it also comes with dangers.

• 彼かれの才さい能のうは諸もろ刃はの剣つるぎで、成せい功こうをもたらす一いっ方ぽうで周しゅう囲いとの摩ま擦さつを生うんだ。

  His talent was a double-edged sword, bringing success but also causing friction with those around him.