"head aching from Hegel"
Georg Hegel
Public DomainGeorg Hegel

 Georg Hegel (1770-1831) was an enormously influential German philosopher. He developed a number of important concepts integrated into a complex philosophical system based on the ideas of rationalism, contradiction and progress. He argued that contradiction was part of the evolution of ideas, and of history, and of a unifying concept he called the Absolute. In his wonderful book A History of Western Philosophy Bertrand Russell describes Hegel's writing as the single most difficult to understand; he's not the best choice of writer for Richard to read while he recovers.