High
Noble, Refined
You only hold someone in high esteem if they are really high, noble people. They have to be refined to be held so highly by you.
こうしょう
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
高尚な趣味をお持ちなんですね。
You have such refined tastes.