grow old
あとは年を取るだけ
All that's left is to grow old.
— レオン (1994)
実のところ、私も年を取るのはひどくゆっくりになったけれど、成長は最後まで続く。
Actually, I’ve slowed down a lot in getting older, but I keep growing until the very end.
彼は年を取るに連れていっそう頑固になった。
He became increasingly stubborn as he grew older.