What significant philosophical work is Boethius known for?

Boethius is renowned for his work titled "The Consolation of Philosophy," which he composed while in prison. This philosophical text merges classical philosophy with Christian thought and is structured as a dialogue between Boethius and Lady Philosophy. It addresses profound themes, such as the nature of happiness, fortune, and the problem of evil, reflecting Boethius's struggle to find meaning in his misfortunes. The work has had a lasting impact on both medieval and modern philosophy, influencing a wide range of writers and thinkers throughout history.

In contrast, the other works mentioned are not attributed to Boethius. "Summa Theologiae" is a seminal theological work by Thomas Aquinas that seeks to explain the principles of Christian doctrine. "The Divine Comedy," written by Dante Alighieri, is an epic poem that explores themes of the afterlife and moral philosophy through an allegorical journey. "The Decameron," authored by Giovanni Boccaccio, is a collection of short stories that reflects the social and moral dilemmas of the 14th century, but it is unrelated to the philosophical pursuits exemplified in Boethius's writings.