After the Quirkless Izuku Midoriya meets All Might, he becomes the successor to All Might's Quirk, One For All, which means he must eventually go up against All For One and Tomura Shigaraki.
It's not a matter of whether 
or not I can do it!
!ليست مسألة ما أستطيع فعله وما لا أستطيع
Es kommt nicht darauf an,
ob man etwas kann!
Peu importe
que j’en sois capable ou pas !
Qui non si tratta di ciò che posso o non posso fare...
Неважно, что я могу, а что нет!