Frank J. Wilstach, comp. A Dictionary of Similes. 1916.

Silently

Silently as a snail slips over a cabbage leaf on a dewy morning.
—J. R. Bartlett’s Dictionary of Americanisms

Silently as a dream.
—William Cowper

Silently as a fish in a stream.
—Sir Arthur Conan Doyle

Fall silently like dew on roses.
—John Dryden

Silently, like thoughts that come and go, the snowflakes fall, each one a gem.
—William Hamilton Gibson

Silently … as colours steal into the pear or plum.
—Robert Herrick

E’en like the passage of an angel’s tear
That falls through the clear ether silently.
—John Keats

Silently as a cloud rolls out of the mouth of a valley.
—Rudyard Kipling

Silently as the winds of the desert sweep upward and northward over the plains.
—Ouida

Eat his dinner as silently as a brother of La Trappe.
—William Makepeace Thackeray

Silently as bubbles burst.
—William R. Thayer

As the water follows the moon, silently, with fluid steps, anywhere round the globe.
—Walt Whitman