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We called the new [fourth] quark the "charmed quark" because we were pleased, and fascinated by the symmetry it brought to the subnuclear world. "Charm" also means a "a magical device to avert evil," and in 1970 it was realized that the old three quark theory ran into very serious problems. ... As if by magic the existence of the charmed quark would [solve those problems].

⇛ Sheldon Lee Glashow (Physicist)
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