Famous quotes containing the words essential and/or oil:
“A task becomes a duty from the moment you suspect it to be an essential part of that integrity which alone entitles a man to assume responsibility.”
—Dag Hammarskjöld (1905–1961)
“Courage, determination, and hard work are all very nice, but not so nice as an oil well in the back yard.”
—Mason Cooley (b. 1927)