からこそ details
write + precisely because
kaku kara koso
precisely because; this reason and no other is what did it
本気で心配してるからこそ、厳しいこと言ってるんだよ。
honki de shinpai shiteru kara koso, kibishii koto itteru n da yo.
I'm being hard on you precisely because I actually care. casual
難しい仕事だからこそ、やってみたいんです。
muzukashii shigoto da kara koso, yatte mitai n desu.
It's exactly because the job is hard that I want to have a go at it. neutral
- dictionary form
- i-adjective
- na-adjective
- noun
Examples
precisely because X — X, and nothing else on offer, is what made the result possible or right
本気で心配してるからこそ、厳しいこと言ってるんだよ。
honki de shinpai shiteru kara koso, kibishii koto itteru n da yo.
I'm being hard on you precisely because I actually care. casual
難しい仕事だからこそ、やってみたいんです。
muzukashii shigoto da kara koso, yatte mitai n desu.
It's exactly because the job is hard that I want to have a go at it. neutral
家族が支えてくれたからこそ、ここまで続けられた。
kazoku ga sasaete kureta kara koso, koko made tsuzukerareta.
It is only because my family backed me that I was able to keep going this far. neutral
皆様のご支援があったからこそ、この事業を続けてまいりました。
minasama no go shien ga atta kara koso, kono jigyou o tsuzukete mairimashita.
It is thanks to your support, and nothing else, that we have carried this work on. formal
Formation
{V}からこそattaches to dictionary formplain clause + からこそattaches to plain clause{I}からこそattaches to i-adjective{NA-stem}だからこそattaches to na-adjective{N}だからこそattaches to noun
Notes
んです. A request or an exhortation does follow where the reason is worth
singling out — 今だからこそ始めよう.
Related patterns
Similar
から takes any reason at all, including a throwaway one, and fronts an ordinary logistics request with it (遅れるから先に行って); からこそ needs a reason worth singling out against its rivals, so ×遅れるからこそ先に行って fails where 危険だからこそ気をつけてください does not.
だけに weighs the reason as an amount and makes the result follow in proportion to it; からこそ weighs nothing and only rules the rival causes out, so its main clause reaches for an explanatory のだ that names this reason as the account (難しいからこそ、やる価値があるんだ).
からこそ singles out a REASON clause as the one true cause, excluding rivals (難しいからこそやる価値がある); にほかならない does the same excluding-rivals work over a NOUN, naming what something truly IS or stems from (彼の成功は努力の結果にほかならない) — same rhetoric, a different grammatical target.
からこそ singles out a REASON as the one true cause — from this reason, and no other, Y follows; てこそ singles out an ACTION or process as the one necessary precondition for Y. A cause explains; a precondition enables — swapped, a reason reads as a method.
Lookalikes
Both open から + a particle onto the same granted reason and then do opposite things with it — からこそ affirms that reason as the one that produced the result, からといって refuses the conclusion drawn from it and forces a negative main clause; reading こそ where といって was written inverts the sentence.
Both open with から onto a stated premise, but they diverge immediately — からこそ affirms that premise as the one true CAUSE of a result already achieved (難しいからこそ、やる価値がある); からには treats the premise as a commitment already made and demands an OBLIGATION going forward (引き受けたからには、最後までやる) — reading one for the other swaps a causal explanation for a duty.