柏拉图是一位希腊哲学家。

Plato was a Greek ___philosopher.

他不是老师，也不是哲学家，但他是一位伟大的艺术家。

He wasn't a teacher, he wasn't a ___philosopher, but he was a great artist.

她渴望成为一名哲学家，并撰写关于存在意义的著作。

She aspires to be a ___philosopher and write about the meaning of existence.