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A philosophy scholar (学者) is someone who studies philosophy. They're known as a philosopher.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
その哲学者は強風を通って歩いたので、自分のベレー帽をしっかりと掴まなくてはならなかった。
The philosopher had to hang on to his beret as he walked through the strong wind.
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