To give an accurate and exhaustive account of that period would need a far less brilliant pen than mine.

Beerbohm’s line is a characteristically paradoxical piece of self-deprecation: he calls his own pen “brilliant” while implying that brilliance is a liability for sober history. The remark suggests that certain periods—especially those tangled in politics, scandal, or social complexity—require plain, patient documentation rather than epigram, wit, or aesthetic flourish. It also hints at the limits of memoir and literary recollection: the more stylized the narrator, the more the account risks becoming a performance. In effect, the quote defends accuracy and exhaustiveness as virtues of a different kind of writing than the sparkling essay or satirical portrait for which Beerbohm was famous.