Ключевые слова: art, background, ball, banknote, bill, black, brain, brainstorm, bright, bulb, business, cash, chalk, chalkboard, competition, composition, concept, copy, creative, creativity, crumpled, currency, dollar, drawing, drawn, electricity, genius, idea, imagination, innovation, inspiration, invention, lamp, light, lightbulb, metaphor, money, motivation, object, solution, space, strategy, success, symbol, text, think, thinking, top, view,