Ключевые слова: 20, 80, 8020, abstract, background, business, businessman, chart, compare, concept, diagram, drawing, economy, education, effect, eighty, eightytwenty, encourage, finance, graph, hand, icon, idea, illustration, incentive, inspire, law, letter, majority, management, message, motivate, motivation, paper, pareto, paretos, pen, pencil, percent, plan, principle, rule, sign, symbol, text, theory, think, twenty, word, write,