Naruto: Shippūden

Sasuke Uchiha:
Back then, that’s when I wondered if your weakness was beginning to rub off on me. Afterwards, every time I’d see you, I think more and more about you, seeing you desperately trying to bond with others. You made me remember my own family. But I don’t know why. But I felt relieved. Yet at the same time, I considered it a weakness. I trained hard, as if to escape that weakness, in order to get stronger for my brother, in order to get my revenge, yet I ended up on the same team as you. I began thinking about my family again. Completing missions with you, while you jabbered on and on becoming the Hokage... I saw both of us getting stronger, and... I started wanting to battle with you too someday. And I began to see a shadow of my own family in Team 7. That’s why every time I saw your suffering... Yeah... that’s right... I, too, felt pain... When I understood you’re hurt... I finally saw you as a comrade... and conversely... I couldn’t leave you alone. You are getting stronger and stronger, and watching you keep getting stronger, I was the one who was jealous of you. You had a strength that I didn’t have... You were always walking in front of me... Just like my late brother... And even today, too.