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 Originally made of rock, flint, and obsidian, knives have evolved in construction as technology has, with blades being made from bronze, copper, iron, steel, ceramics, and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:
“Why use an ox-slaughtering knife to kill chickens?”
—Chinese proverb.
“Most suicides are committed with a knife and fork.”
—Swedish proverb, trans. by Verne Moberg.
“The screaming silence of no’s knife in yes’s wound.”
—Samuel Beckett (1906–1989)