Kokoro, by Natsume Soseki (paragraph #856)

門口を出て二三町來た時、私はついに先生に向つて口を切つた。

translation

When I left the gate and came twenty-three towns, I finally spoke to Sensei.

kanji (pronunciations & definitions)
門口: door (かどぐち), entrance, gateway : coming out (で), going out, outflow, efflux, rising (of the Sun or the Moon) 二三: two or three (にさん) 先生: teacher (せんせい), instructor, master, sensei, title or form of address for a teacher, master, doctor, lawyer, etc.
: eager (せつ), earnest, ardent, kind, keen

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