“Write with nouns and verbs, not with adjectives and adverbs. The adjective hasn't been built that can pull a weak or inaccurate noun out of a tight place.”

– William Strunk and E.B. White, The Elements of Style, 1959

(A variation of this idea: "The road to hell is paved with adverbs." – Stephen King, On Writing: A Memoir of the Craft, 2000.)