Famous quotes containing the words single and/or species:
“Ye taught my lips a single speech,
And a thousand silences.”
—Ralph Waldo Emerson (1803–1882)
“There are minds so impatient of inferiority that their gratitude is a species of revenge, and they return benefits, not because recompense is a pleasure, but because obligation is a pain.”
—Samuel Johnson (1709–1784)