她提出了一个关于现实本质的哲学问题。

She raised a ___philosophical question about the nature of reality.

拉尔夫开始听从皮吉的建议，并问他一些哲学问题。

Ralph started taking advice from Piggy and asking him ___philosophical questions.

他的著作深受古希腊思想家的影响，具有深刻的哲学性。

His writings are deeply ___philosophical, influenced by ancient Greek thinkers.