Hard or Hardness may refer to:
- Hardness, resistance of physical materials to change under force
- Hard water, water with a high mineral content
- NP-hard, a term used in Computational complexity theory
- Hard, Austria, a town in Austria
- Hard (Zurich), a quarter in Zürich
- Hard (tennis), a type of tennis court
- Hard (music festival), concerts and live events
- Hard, or hard-on, a slang term for an erection
- Hard (nautical), a firm or paved beach or slope convenient for hauling vessels out of the water
- Hard (surname)
- Hayward Area Recreation and Park District, abbreviated H.A.R.D.
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Famous quotes containing the word hard:
“It is a good lesson—though it may often be a hard one—for a man who has dreamed of literary fame, and of making for himself a rank among the world’s dignitaries by such means, to step aside out of the narrow circle in which his claims are recognized, and to find how utterly devoid of all significance, beyond that circle, is all that he achieves, and all he aims at.”
—Nathaniel Hawthorne (1804–1864)
“It is hard to be finite upon an infinite subject, and all subjects are infinite.”
—Herman Melville (1819–1891)
“The Indian remarked as before, “Must have hard wood to cook moose-meat,” as if that were a maxim, and proceeded to get it. My companion cooked some in California fashion, winding a long string of the meat round a stick and slowly turning it in his hand before the fire. It was very good. But the Indian, not approving of the mode, or because he was not allowed to cook it his own way, would not taste it.”
—Henry David Thoreau (1817–1862)