The Decline and Fall of the Roman Empire · ¶124

The monstrous vices of the son have cast a shade on the purity of the father’s virtues. It has been objected to Marcus, that he sacrificed the happiness of millions to a fond partiality for a worthless boy; and that he chose a successor in his own family, rather than in the republic. Nothing however, was neglected by the anxious father, and by the men of virtue and learning whom he summoned to his assistance, to expand the narrow mind of young Commodus, to correct his growing vices, and to render him worthy of the throne for which he was designed. But the power of instruction is seldom of much efficacy, except in those happy dispositions where it is almost superfluous. The distasteful lesson of a grave philosopher was, in a moment, obliterated by the whisper of a profligate favorite; and Marcus himself blasted the fruits of this labored education, by admitting his son, at the age of…

Edward Gibbon · Project Gutenberg #731 (Milman edition) — public domain
Source edition
Passage preview. Read in context for the complete text, notes and references.