原因・理由N1
〜ばこそ
precisely because... / it is because... that...
Structure
V-ば形 + こそ
Explanation
V-ba + こそ: it is precisely because... that the result holds; more literary than からこそ.
Examples
努力すればこそ、成功が得られる。
It is precisely through effort that success is achieved.
彼を信じればこそ、任せたのだ。
It was precisely because I trusted him that I left it to him.
Note
Synonymous with からこそ, but more literary and emphatic.