In the book he sets out and defines some of the perennial problems of philosophy, including the problem of evil, free will and determinism, the nature of justice and of virtue.

在这本著作中，他对一些哲学里常年不衰的问题进行阐述并给出了自己的定义，包括罪恶、自由意志和决定论，正义和美德的性质等问题。

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And that's a perennial issue in philosophy.

这在哲学上也是一个经久不衰的问题。

youdao

And that's a perennial issue in philosophy.

这在哲学上也是一个经久不衰的问题。

普林斯顿公开课 - 人性课程节选

The perennial philosophy expresses our innate sense that there is more to human beings and to the material world than meets the eye.

NPR: Karen Armstrong: Myths and the Modern World

It has been called the 'perennial philosophy' because it informed the mythology, ritual and social organisation of all societies before the advent of our scientific modernity, and continues to influence more traditional societies today.

NPR: Karen Armstrong: Myths and the Modern World

According to the perennial philosophy, everything that happens in this world, everything that we can hear and see here below has its counterpart in the divine realm, which is richer, stronger and more enduring than our own.

NPR: Karen Armstrong: Myths and the Modern World