There are, so Montaigne implied, no legitimate reasons why books in the humanities should be difficult or boring; wisdom does not require a specialized vocabulary or syntax, nor does an audience benefit from being wearied. Carefully used, boredom can be a valuable indicator of the merit of books. Though it can never be a sufficient judge (and in its more degenerate forms, slips into wilful [sic] indifference and impatience), taking our levels of boredom into account can temper an otherwise excessive tolerance for balderdash. THose who do not listen to their boredom when reading, like those who pay no attention to pain, may be increasing their suffering unnecessarily. Whatever the dangers of being wrongly bored, there are as many pitfalls in never allowing ourselves to lose patience with our reading matter.
—Alain de Botton, The Consolations of Philosophy