How does the phrase "spiritual exercises" suggest that ancient philosophy was less about abstract theory and more about a concrete way of life? Provide an example of what such an "exercise" might entail.

Synthesized answer

The phrase "spiritual exercises" suggests that ancient philosophy was understood not as mere abstract theory, but as a concrete way of life that profoundly shaped the individual [1]. These exercises were intended to transform the philosopher, aiming to make them live in a particular way and cultivate specific virtues [1].

An example of what such an "exercise" might entail is the Stoic practice of meditating on death [1]. This practice served as a way to detach oneself from the fear of death, thereby fostering a more tranquil and virtuous existence [1]. The passages do not provide further examples of specific "exercises" or elaborate on other ways in which ancient philosophy was less about abstract theory and more about a concrete way of life.

Synthesized from the book passages below. Chat with the book on Feynman for follow-up.