It is with our passions as it is with fire and water, they are good servants, but bad masters. Aesop
Good slaves are free, but bad free men are slaves of many passions. Bion of Borysthenes
Blessed the one who meditates on death each day and destroys the base passions lurking in the vines of the heart, for he will be consoled in the moment of separation. Ephrem the Syrian
The passions are like fire and water: good servants but bad masters. American Proverb
He who overcomes his passions overcomes his greatest enemies. Colombian Proverb
Master your passions or your passions will master you. English Proverb