からこそ

JLPT Level: N3
Meanings

Emphasized because

Precisely because

It is because (and that is why)

Usage

Reason clause + からこそ + result clause

今・今こそ + 〜 + 結果/主張

Explanation
からこそ is used to stress that the reason is the key for the following outcome or belief. It marks the cause as not just true, but crucial in making the result happen or in supporting a strong claim. It often appears in motivational statements, explanations of decisions, or when defending a choice, emphasizing that the particular reason is exactly what matters.
今だからこそ、全力を尽くすべきだ。
いまだからこそ、ぜんりょくをつくすべきだ。

Now is exactly the time to put in our best effort.

あなたがいてこそ、チームは完成する。
あなたがいてこそ、チームはかんせいする。

It is because you are here that the team comes together.

苦労が多いからこそ、成長できる。
くろうがおおいからこそ、せいちょうできる。

It is precisely because there are many hardships that we can grow.