Famous quotes containing the words single and/or species:
“It is handsomer to remain in the establishment better than the establishment, and conduct that in the best manner, than to make a sally against evil by some single improvement, without supporting it by a total regeneration.”
—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)