Person

From Bakemonogatari:

Kanbaru: "I'm a lesbian."

"I would have been willing to die for her back then."

"But I was rejected with no consideration."

Araragi: "No matter how hard you try, you can't take Senjougahara's place. After all, you're not Senjougahara. No one can become anyone else's replacement. No one can become anyone else. No matter how much you like her or look up to her."

It matters not who you cannot be, for it is who you are that makes you 'you'.

「自分に自信がある！」 (jibun ni jishin ga aru, lit. "Have confidence in yourself!")
P.S.: Found through many many searches with the help of Google Translate. Hope it's correct... XD