Kokoro, by Natsume Soseki (paragraph #534)

先生は少し不安な顏をした。さうして直接の答を避けた。

translation

Sensei looked a little worried. I avoided a direct answer.

kanji (pronunciations & definitions)
先生: teacher (せんせい), instructor, master, sensei, title or form of address for a teacher, master, doctor, lawyer, etc. : small (しょう), little, few 不安: anxiety (ふあん), uneasiness, worry, apprehension, fear : face (かお), face (がん), visage, visage, look
: answer (こたえ), reply, response, answer, solution

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