During the boulder training, Tanjiro is able to move the boulder thanks to Genya's training advice. However, Tanjiro has used all of his power to do so and he is saved by Himejima after he collapses. Himejima, moved by Tanjiro's genuineness, begins to talk to him about his past...
I appreciate your concern...
...أقدّر لك قلقك عليّ
Ich weiß deine Sorge zu schätzen,
Me alegra que te preocupes por mí.
Gracias por preocuparte,
Merci de t’inquiéter pour moi,
Mi fa piacere che ti preoccupi,
Agradeço a preocupação.
Спасибо, что переживаешь,