Frank J. Wilstach, comp. A Dictionary of Similes. 1916.
Devotion
Devotion is like the candle which Michael Angelo used to take in his pasteboard cap, so as not to throw his shadow upon the work on which he was engaged.
—Phillips Brooks
Devotion, like fire in froste weather, burns hottest in affliction.
—Sir Thomas Overbury
Devotion, like fire, goeth upward.
—Zoroaster