Too strongly

This makes the madmen who have made men mad
By their contagion! Conquerors and Kings,
Founders of sects and systems, to whom add
Sophists, Bards, Statesmen, all unquiet things
Which stir too strongly the soul’s secret springs,
And are themselves the fools to those they fool;
Envied, yet how unenviable! what stings
Are theirs! One breast laid open were a school
Which would unteach mankind the lust to shine or rule:
—
Lord Byron, Childe Harold’s Pilgrimage