Knife
A knife (plural knives) is a cutting tool with an exposed cutting edge or blade, hand-held or otherwise, with or without a handle. Knife-like tools were used at least two-and-a-half million years ago, as evidenced by the Oldowan tools. Originally made of rock, flint, and obsidian, knives have evolved in construction as technology has, with blades being made from bronze, copper, iron, steel, ceramics, and titanium. Many cultures have their unique version of the knife. Due to its role as humankind's first tool, certain cultures have attached spiritual and religious significance to the knife.
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Famous quotes containing the word knife:
“The plastic surgeon’s knife slashes at time, which may seem to retreat, but then keeps on coming.”
—Mason Cooley (b. 1927)
“Why use an ox-slaughtering knife to kill chickens?”
—Chinese proverb.
“When she, and though some said she played
I said that she had danced heart’s truth,
Drew a knife to strike him dead,
I could but leave him to his fate;
For, no matter what is said,
They had all that had their hate....”
—William Butler Yeats (1865–1939)