Famous quotes containing the words sharp and/or key:
“A tart temper never mellows with age, and a sharp tongue is the only edged tool that grows keener with constant use.”
—Washington Irving (1783–1859)
“Every revolution was first a thought in one man’s mind, and when the same thought occurs in another man, it is the key to that era.”
—Ralph Waldo Emerson (1803–1882)