からこそ

Emphasized because, Precisely because

あなたがいるからこそ、安心あんしんできるんです。

It's precisely because you're here that I can feel at ease.

Explanation

「からこそ」 means 'precisely because'. It stresses that no other reason will do: it is exactly this cause that leads to the result. It often brings up a reason that looks surprising but is really the key: 「子供の将来を心配しているからこそ、厳しく叱るのだ」 (It is precisely because I worry about my child's future that I scold him strictly), 「失敗したからこそ、成功の道が見えた」 (Only because I failed did I see the road to success). The tone is firm, and the ending often uses 「～のだ」.

Mixed up with

「から」 just gives an ordinary reason; 「からこそ」 rules out other possibilities: 'only this reason makes sense'.

The result can't be a poor excuse. Don't say 「×寝坊したからこそ、遅刻した」. It should be an action, resolve or explanation that the speaker gives meaning to.

Examples

先輩せんぱいに色々いろいろと教おしえてもらったからこそ、私わたしはここまで来こられたのです。
I was able to get to where I am now because of all the things you, senpai, have taught me.
君きみだからこそできたんだよ。俺おれにはまだそんなすごいことはできない。
You were able to do it precisely because it was you. I can't do anything that amazing yet.
俺おれは努力どりょくしたからこそ、試験しけんに合格ごうかくできたんだよ。頭あたまがいいからだけじゃないよ。
I was able to pass the test, precisely because I gave it my all. It's not only because I am smart.
ここは綺麗きれいな川かわだからこそ、こんな美味おいしい魚さかなが釣つれるんですよ。
You can catch great fish here precisely because the river is so clean.
タナカ君くんが休やすみなのに仕事しごとに来きてくれたからこそ、準備じゅんびが早はやく終おわったり、締しめ切きりまでに仕事しごとを終おわらせることができたんです。
We were able to finish with the prep work and finish work by the deadline, precisely because you, Tanaka-kun, came into work even though it was your day off.
仲間なかまがいるからこそ、頑張がんばれる。
I can do my best precisely because I have friends.
難むずかしい状況じょうきょうだからこそ生うまれるアイデアもある。
There are also ideas that are born precisely because of difficult situations.
君きみが励はげましてくれたからこそ、ここまでやってこれたんだ。
I could make it this far precisely because you have given me so much support.
毎日まいにち努力どりょくをしたからこそ、一番いちばんになれた。
Precisely because I worked hard every day, I was able to become number one.
君きみの手伝てつだいがあったからこそ、大おおきな石いしを動うごかすことができた。
Precisely because you helped, we were able to move the large rock.
操作そうさが簡単かんたんだからこそ、お年寄としよりにも人気にんきがある。
It's popular even with older people precisely because it's easy to use.
昨日きのうまでの苦労くろうがあったからこその達成感たっせいかんだ。
This sense of achievement comes precisely from all the hard work up to yesterday.
彼女かのじょがいたからこそ、兎うさぎを捕つかまえることができた。
I was able to catch the rabbit precisely because she was there.
毎日まいにち運動うんどうをしているからこそ、健康けんこうでいられるのだ。
I can stay healthy precisely because I exercise every day.
あなたが案内あんないしてくれたからこそ、楽たのしい旅行りょこうができた。
Precisely because you were our guide, we were able to enjoy our trip.

からこそ

Explanation

Mixed up with

Examples

Tested 2 times in past papers